WO2019165947A1

WO2019165947A1 - Optical waveguide apparatus

Info

Publication number: WO2019165947A1
Application number: PCT/CN2019/076118
Authority: WO
Inventors: 操时宜
Original assignee: 华为技术有限公司
Priority date: 2018-02-28
Filing date: 2019-02-26
Publication date: 2019-09-06
Also published as: CN110208904B; CN110208904A

Abstract

An optical waveguide apparatus, relating to the technical field of communications, and comprising an optical waveguide unit (1) and a functional unit (2). The optical waveguide unit (1) is implemented by means of a first variable optical waveguide, and the functional unit (2) is implemented by means of a fixed optical waveguide, or a second variable optical waveguide. The fixed optical waveguide is an optical waveguide that a preset optical signal path cannot change, and the first variable optical waveguide and the second variable optical waveguide are optical waveguides for controlling, on the basis of configuration information, an optical material to form an optical signal path or eliminating an optical signal path to implement corresponding optical processing functions. The optical waveguide unit (1) is connected to the functional unit (2). The functional unit (2) is used for implement a first optical processing function of an optical signal; the optical waveguide unit (1) is used for implementing a second optical processing function of the optical signal on the basis of the configuration information. The optical waveguide apparatus is not implemented by using an optical device in space optics, the requirements for vibration are not high, and the difficulty for implementing a transmission node device can be reduced.

Description

Optical waveguide device

The present application claims priority to Chinese Patent Application No. 201101169, 228, filed on Feb. 28, 2008, the entire disclosure of which is hereby incorporated by reference.

Technical field

The present application relates to the field of communications technologies, and in particular, to an optical waveguide device.

Background technique

In an optical transport network, different devices, such as a Wavelength Selective Switch (WSS) or an optical switch matrix (or optical switch array) device, are required at the transmission node to implement different optical processing functions. The equipment is mainly implemented based on the technology of space optics.

In the process of implementing the present application, the inventors found that the prior art has at least the following problems:

Since the device is implemented based on the technology of space optics, that is to say, some optical devices are used to transmit optical signals through space, and pass through a plurality of optical devices such as lenses. The vibration sometimes shifts the optical device, and the displacement of the optical device causes the output power of the device to change, or even no output at all, so the requirement for vibration is relatively high, making the device of the transmission node difficult to implement.

Summary of the invention

In order to solve the problems of the related art, embodiments of the present invention provide an optical waveguide device. The technical solutions are as follows:

In a first aspect, an optical waveguide device is provided. The optical waveguide device includes an optical waveguide unit and a functional unit. The optical waveguide unit is implemented by a first variable optical waveguide, and the functional unit is implemented by a fixed optical waveguide or a second variable optical waveguide. The fixed optical waveguide is an optical waveguide whose preset optical signal path cannot be changed. The first variable optical waveguide and the second variable optical waveguide are used to control the optical material to form an optical signal path or eliminate the optical signal path to implement corresponding light processing based on the configuration information. A functional optical waveguide, wherein: the optical waveguide unit is connected to the functional unit; the functional unit is configured to implement a first optical processing function of the optical signal; and the optical waveguide unit is configured to implement a second optical processing function of the optical signal based on the configuration information.

In the solution shown in the embodiment of the present invention, the optical waveguide device includes an optical waveguide unit and a functional unit, and the optical waveguide unit is implemented by the first variable optical waveguide, and the first variable optical waveguide may be configured to control the optical material to form an optical signal path based on the configuration information. Or removing the optical waveguide that realizes the corresponding optical processing function of the optical signal path, the optical material may be a liquid crystal, etc., and the functional unit may be implemented by a fixed optical waveguide or a second variable optical waveguide, and the fixed optical waveguide is a preset optical signal path cannot be changed. After the optical waveguide is fabricated, the preset optical signal path is also completed, and cannot be changed in the following. The preset optical signal path refers to a path that is pre-established and becomes a precondition (or can be an optical signal path) of the optical signal path. Once the optical signal is input to the path, it becomes an optical signal path, and if no light is input to the path, Signal, this path cannot be called an optical signal path in the exact sense. The second variable optical waveguide is the same as the first variable optical waveguide except that the second variable optical waveguide is smoother than the first variable optical waveguide, or the second variable optical waveguide has a lower unit loss than the first variable optical waveguide a variable optical waveguide, wherein the second variable optical waveguide may be an optical waveguide that generates an electric field based on the configuration information to control the liquid crystal generating optical path to implement a corresponding optical processing function, and the configuration information corresponding to the second variable optical waveguide is added by the liquid crystal molecules. The voltage is more dense.

The functional unit may be configured to implement a first optical processing function, and the optical waveguide unit may implement a second optical processing function of the optical signal based on the configuration information, where the configuration information may be information for generating an electric field, such as a voltage value applied to the electrode, and which The electrode needs to change the voltage and the like. The first light processing function and the second light processing function respectively include any one or more of the following: an optical signal path function, an optical signal exchange function, a spot conversion function of the optical signal, an optical signal based on the power split function, and an optical signal based on the power. The combining function, the optical signal dispersion function, the optical signal based on the central wavelength combining function, the optical signal based on the central wavelength splitting function, the optical signal transmission delay function, and the optical signal filtering function.

In a possible implementation manner, the configuration information includes an output voltage of each electrode of the first variable optical waveguide, magnetic field information of the first variable optical waveguide, and temperature information of the first variable optical waveguide. Any of them.

In the solution shown in the embodiment of the present invention, the configuration information may be preset by a technician and stored in the optical waveguide device, and the configuration information may be any one of information for generating an electric field, magnetic field information, and temperature information, and correspondingly generated. The information of the electric field may specifically be the output voltage of each electrode of the first variable optical waveguide.

In a possible implementation manner, the first light processing function is an optical signal dispersion function, and the optical signal dispersion function is: separating one optical signal according to a frequency component, or synthesizing multiple optical signals including different frequency components into one light. signal.

In the solution shown in the embodiment of the present invention, the dispersion function is: one is to divide one combined optical signal into multiple single optical signals containing different frequency components, or to synthesize multiple optical signals containing different frequency components into one channel. The optical signal is divided into a plurality of single-wave optical signals containing different frequency components, or a single-wave optical signal containing different frequency components is combined into one combined optical signal. Single optical signal: A single optical signal is an optical signal whose data is modulated on a certain frequency component. Only when these frequency components are received can the data be completely recovered. Single-wave optical signal: One of a single optical signal, except that the single-wave optical signal has a center wavelength. Synthetic optical signal: Contains a single optical signal with multiple frequency components. A multiplexed optical signal: a single-wave optical signal having a plurality of different frequency components. That is to say, the single-wave optical signals in the combined optical signal have different center wavelengths.

In a possible implementation, the functional unit comprises at least one first functional unit and at least one second functional unit, the first functional unit is configured to separate one optical signal according to a frequency component, and the second functional unit is used for The optical signal comprising different frequency components is combined into one optical signal, the first functional unit comprises a first interface point and a plurality of second interface points, and the second functional unit comprises a plurality of third interface points and a fourth interface point; An interface point and a fourth interface point are connected to an interface point corresponding to the optical fiber or the optical fiber; the optical waveguide unit is configured to connect the second interface point and the third interface point based on the configuration information to form a second interface point and the third interface point Optical signal path.

In the solution shown in the embodiment of the present invention, when an optical signal passes through the first interface point of the first functional unit, the first functional unit may separate the optical signal of one optical signal according to the frequency component, and obtain multiple optical signals including different frequency components. And respectively transmitted to the plurality of second interface points, because the optical waveguide unit can generate or change an electric field, a magnetic field or a temperature, etc. based on the configuration information, to control the optical material to connect the second interface and the third interface point to form the second interface point and the The optical signal path between the three interface points, such that multiple optical signals containing different frequency components can be transmitted to the plurality of third interface points through the optical signal path between the second interface point and the third interface point. The second functional unit may synthesize the multiple optical signals received by the plurality of third interface points to obtain an optical signal, which is transmitted to the optical fiber through the fourth interface point. In this way, the function of WSS can be realized, that is, the function of wavelength selection exchange is realized.

In a possible implementation manner, the functional unit includes a first functional unit and a plurality of second functional units, and the first interface point and the fourth interface point are a combined optical signal interface point or a combined optical signal interface point, and the second interface The point and the third interface point are single-wave optical signal interface points or single optical signal interface points.

In a possible implementation manner, the functional unit includes a plurality of first functional units and a second functional unit, and the first interface point and the fourth interface point are a combined optical signal interface point or a combined optical signal interface point, and the second interface The point and the third interface point are single-wave optical signal interface points or single optical signal interface points.

In a possible implementation manner, the functional unit includes at least one third functional unit, and the third functional unit is configured to separate one optical signal according to a frequency component, or to synthesize multiple optical signals including different frequency components. An optical signal, the third functional unit includes a fifth interface point and a plurality of sixth interface points; the fifth interface point is connected to an interface point corresponding to the optical fiber or the optical fiber; and the optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber; The waveguide unit is configured to connect the sixth interface point and the optical fiber based on the configuration information, form an optical signal path between the sixth interface point and the optical fiber, or connect the interface point corresponding to the sixth interface point and the optical fiber to form a sixth interface point and an optical fiber. The optical signal path between the corresponding interface points.

In the solution shown in the embodiment of the present invention, the optical waveguide device may be a WSS of S*T, and the functional unit may include a third functional unit, and the third functional unit is configured to separate one optical signal according to a frequency component, and one optical signal is A combined optical signal or a combined optical signal, or a third functional unit is configured to combine multiple optical signals containing different frequency components into one optical signal, and the optical signal containing different frequency components is a single optical signal or a single optical signal. . The third functional unit includes a fifth interface point and a plurality of sixth interface points; the fifth interface point is connected with an interface point corresponding to the optical fiber or the optical fiber, and the fifth interface point is a combined optical signal interface point or a composite optical signal interface point, The six interface points are single-wave optical signal interface points or single optical signal interface points. The optical waveguide unit can connect the sixth interface point and the optical fiber based on the configuration information, form an optical signal path between the sixth interface point and the optical fiber, or connect the interface point corresponding to the sixth interface point and the optical fiber to form a sixth interface point and an optical fiber. The optical signal path between the corresponding interface points. In this way, the WSS function of S*T can be realized.

In a possible implementation manner, the number of functional units is greater than or equal to 2, and the functional unit includes a seventh interface point and a plurality of eighth interface points; the optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber; When the optical signal is received through the seventh interface point, the received optical signal is separated into multiple optical signals according to the frequency component, and is output through the eighth interface point, and is received separately through the eighth interface point. When the optical signal of the frequency component is received, the received optical signal containing different frequency components is synthesized into one optical signal and output through the seventh interface point; the optical waveguide unit is configured to connect the eighth interface point of the different functional unit based on the configuration information. Forming an optical signal path between the eighth interface points of the different functional units and an interface point connecting the seventh interface point with the optical fiber or the optical fiber to form an optical signal between the seventh interface point and the interface point corresponding to the optical fiber or the optical fiber Path; or, for connecting the interface point corresponding to the optical fiber or the optical fiber to the seventh interface point based on the configuration information, forming the seventh interface point and the light The optical signal path between the interface points corresponding to the fiber or the optical fiber and the interface point corresponding to the optical fiber or the optical fiber connected to the eighth interface point form an optical signal path between the eighth interface point and the interface point corresponding to the optical fiber or the optical fiber.

In the solution shown in the embodiment of the present invention, the optical waveguide device may be selectively configured as any one or more of 1*N WSS, M*N WSS, and S*T WSS, and the number of functional units is greater than or equal to 2. The functional unit includes a seventh interface point and a plurality of eighth interface points. The seventh interface point may be referred to as a combined optical signal or a composite optical signal interface point, and may be used to receive a combined optical signal or a composite optical signal. The interface point can be a single-wave optical signal or a single optical signal interface point, and can be used to receive a single-wave optical signal or a single optical signal. The functional unit can be configured to, when receiving the optical signal through the seventh interface point, separate the received optical signal into multiple optical signals according to the frequency component, output through the eighth interface point, and receive respectively through the eighth interface point. When an optical signal containing different frequency components is received, the received optical signals containing different frequency components are combined into one optical signal and output through the seventh interface point.

The optical waveguide unit is used to establish an optical signal path between the eighth interface points of the different functional units, and is also used to establish an optical signal path between the seventh interface point and the interface point corresponding to the optical fiber or the optical fiber, which can realize 1*N. WSS, or N*1 WSS.

The optical waveguide unit is used to establish an optical signal path between the seventh interface point and an interface point corresponding to the optical fiber or the optical fiber, and can implement the WSS of the S*T.

In a possible implementation manner, the optical waveguide unit includes a first optical waveguide unit and a second optical waveguide unit, the functional unit includes at least one fourth functional unit and at least one fifth functional unit; and the fourth functional unit is used to connect the first The optical signal is separated according to the frequency component, or is used to synthesize multiple optical signals containing different frequency components into one optical signal; the fifth functional unit is used for transmitting the optical signal; and the fourth functional unit includes a ninth interface point and at least one a tenth interface point; the ninth interface point is connected to the first optical waveguide unit, the tenth interface point is connected to the second optical waveguide unit; and the fifth functional unit includes at least one eleventh interface point and at least one twelfth interface point, The eleventh interface point is connected to the first optical waveguide unit, and the twelfth interface point is connected to the second optical waveguide unit; the first optical waveguide unit is connected to the interface point corresponding to the optical fiber or the optical fiber, and the second optical waveguide unit is connected with the optical fiber or the optical fiber. Corresponding interface point connection; the first optical waveguide unit is configured to connect the interface point corresponding to the optical fiber or the optical fiber to the ninth interface point based on the configuration information, The optical signal path between the ninth interface point and the interface point corresponding to the optical fiber or the optical fiber, and the second optical waveguide unit is configured to connect the interface point corresponding to the optical fiber or the optical fiber to the ninth interface point to form a ninth interface based on the configuration information. An optical signal path between an interface point corresponding to the optical fiber or the optical fiber, and a tenth interface point connecting different fourth functional units based on the configuration information, forming an optical signal path between the tenth interface points of different fourth functional units Or the first optical waveguide unit is configured to connect the eleventh interface point to the interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and form an optical signal path between the eleventh interface point and the interface point corresponding to the optical fiber or the optical fiber; The second optical waveguide unit is configured to connect the twelfth interface point to the interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and form an optical signal path between the twelfth interface point and the interface point corresponding to the optical fiber or the optical fiber.

In the solution shown in the embodiment of the present invention, the optical waveguide device may be either a 1*N WSS or an optical switching matrix (or optical switch array) device, and the optical waveguide unit includes a first optical waveguide unit and a second optical waveguide unit. Both the first optical waveguide unit and the second optical waveguide unit can be realized by the first variable optical waveguide. The functional unit may include at least one fourth functional unit and at least one fifth functional unit, the fourth functional unit including a ninth interface point and at least one tenth interface point, the ninth interface point being a composite optical signal interface point, and the tenth interface The point is a single optical signal interface point or the ninth interface is a combined optical signal interface point, and the tenth interface point is a single-wave optical signal interface point. The fifth functional unit includes at least one eleventh interface point and at least one twelfth interface point, and the eleventh interface point and the twelfth interface point may be a combined optical signal interface point, or may be a single-wave optical signal interface point, or The eleventh interface point and the twelfth interface point may be a composite optical signal interface point or a single optical signal interface point. The functions of the fourth functional unit and the fifth functional unit are different, and the fourth functional unit is configured to separate one optical signal according to the frequency component to obtain multiple single-wave optical signals or single optical signals, or to multi-channel single-wave optical signals. Obtaining a combined optical signal, or synthesizing a plurality of individual optical signals to obtain a combined optical signal, and the fifth functional unit is only for transmitting the optical signal.

The first optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber, and the second optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber, and the first optical waveguide unit can establish the ninth interface point and the optical fiber or the optical fiber based on the configuration information. Corresponding optical signal path between the interface points, the second optical waveguide unit, based on the configuration information, establishing an optical signal path between the ninth interface point and the interface point corresponding to the optical fiber or the optical fiber, and establishing different numbers based on the configuration information An optical signal path between the tenth interface points of the four functional units. In this way, WSS can be implemented.

Alternatively, the first optical waveguide unit may establish an optical signal path between the eleventh interface point and an interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and the second optical waveguide unit may establish the twelfth interface based on the configuration information. The optical signal path between the point of the interface corresponding to the fiber or fiber. In this way, an optical switching matrix (or optical switch array) device can be implemented.

In a possible implementation, the functional unit includes at least one thirteenth interface point and at least one fourteenth interface point; and the optical waveguide unit is configured to connect the thirteenth interface point to the optical fiber or the optical fiber based on the configuration information. An interface point, forming an optical signal path between the thirteenth interface point and an interface point corresponding to the optical fiber or the optical fiber, and an interface point connecting the fourteenth interface point to the optical fiber or the optical fiber to form the fourteenth interface point and the optical fiber or the optical fiber The optical signal path between the corresponding interface points.

In the solution shown in the embodiment of the invention, the waveguide device can be configured as an optical switching matrix (or optical switch array) device. The role of the optical switching matrix (or optical switch array) device is to enable optical signals to be input from any input fiber to be exchanged to any output fiber. The number of functional units is 1, and the functional unit includes at least one thirteenth interface point and at least one fourteenth interface point. The configuration information includes switching matrix information, etc., and the optical waveguide unit can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material to connect the thirteenth interface point and the optical fiber to form a thirteenth interface point and the optical fiber. The optical signal path, or the optical waveguide unit may generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material to connect the thirteenth interface point and the interface point corresponding to the optical fiber, and form a thirteenth interface point corresponding to the optical fiber. Optical signal path between interface points. And the electric field, the magnetic field, the temperature, etc. may be generated or changed based on the configuration information to control the optical material to connect the fourteenth interface point and the optical fiber to form an optical signal path between the fourteenth interface point and the optical fiber, or the optical waveguide unit may be based on The configuration information is generated or changed by electric field, magnetic field, temperature, etc. to control the optical material to connect the fourteenth interface point and the interface point corresponding to the optical fiber to form an optical signal path between the fourteenth interface point and the interface point corresponding to the optical fiber. When any one of the optical signals is transmitted through the optical signal between the optical fiber and the thirteenth interface point to the thirteenth interface point, the functional unit may receive the light of the thirteenth interface point based on the preset optical switching matrix. Signal, sent to the fourteenth interface point. This optical signal can be transmitted to the optical fiber based on the optical signal path between the fourteenth interface point and the optical fiber. In this way, optical signals are exchanged from the input fiber to any output fiber.

In a possible implementation manner, the functional unit is etched on the silicon wafer, the silicon wafer is provided with a through slot, and the optical waveguide unit is disposed in the through slot.

In a possible implementation manner, at the contact position of the functional unit with the optical waveguide unit, the absolute value of the refractive index of the functional unit equal to or different from the refractive index of the optical waveguide unit is less than a preset value.

In the solution shown in the embodiment of the present invention, in order to reduce the loss of the connection between the functional unit and the optical waveguide unit, at the contact position of the functional unit and the optical waveguide unit, the refractive index of the fixed optical waveguide in the functional unit and the optical waveguide unit The refractive indices of the variable optical waveguides are similar or equal, and the proximity is understood to be such that the absolute value of the difference between the refractive index of the fixed optical waveguide in the functional unit and the refractive index of the variable optical waveguide in the optical waveguide unit is less than a preset value.

In a second aspect, an optical waveguide device is provided. The optical waveguide device includes a configuration unit and an optical waveguide unit. The optical waveguide unit is implemented by a variable optical waveguide, and the variable optical waveguide controls the optical material to form an optical signal based on configuration information provided by the configuration unit. a path or an optical waveguide that eliminates an optical signal path to implement a corresponding optical processing function; wherein: the configuration unit is electrically connected to the optical waveguide unit; and the configuration unit is configured to send configuration information to the optical waveguide unit, where the configuration information includes information of the device in the network node, Any one or more of information of an optical signal transmission path, an output voltage of each electrode of the variable optical waveguide, magnetic field information of the variable optical waveguide, and temperature information of the variable optical waveguide; The waveguide unit is configured to change the performance corresponding to the light processing function or the light processing function of the optical waveguide device according to the configuration information. The information of the device in the network node includes the optical processing function corresponding to the slot of the device to which the optical waveguide device is installed; the information of the optical signal transmission path includes: loss requirement information for optical signal transmission, and/or downlink information, and the downlink information is used for Indicates whether the optical signal is off the network node where the optical waveguide device is located.

The information of the network node device may include a light processing function corresponding to the slot of the device to which the optical waveguide device is installed, and the slot of the device may be a slot of the optical backplane, that is, after the optical waveguide device is installed in the slot, The implemented light processing function, for example, the information of the network node device is what type of WSS is installed in the device slot, and information such as electric field, magnetic field or temperature corresponding to the optical waveguide unit of the corresponding type of WSS.

In the solution shown in the embodiment of the present invention, the optical waveguide device includes a configuration unit and an optical waveguide unit, and the optical waveguide unit can be realized by a variable optical waveguide, and the configuration unit is electrically connected to the optical waveguide unit. The technician may store configuration information in the configuration unit, and the configuration unit may send configuration information to the optical waveguide unit, where the configuration information may include information of the network node device, information of a transmission path of the optical signal, and each electrode of the variable optical waveguide. The optical waveguide unit may receive configuration information transmitted by the configuration unit, and the optical waveguide unit may be based on the received configuration information, by using any one or more of an output voltage, magnetic field information of the variable optical waveguide, and temperature information of the variable optical waveguide. To change the performance of the light processing function or the light processing function, changing the light processing function of the optical waveguide device includes changing from one or more of the following functions to another or another combination: optical signal path function, Optical signal switching function, power signal based power splitting, optical signal power based combining, optical signal spot changing function, optical signal dispersion function, optical signal based on central wavelength combining function, optical signal based on central wavelength splitting function , optical signal transmission delay function, optical signal filtering function, the above light processing function has been in front Buddhism is not repeated here.

In a possible implementation manner, the configuration information is information of a device in the network node, the information of the device in the network node includes a light processing function corresponding to a device slot to which the optical waveguide device is installed, and the optical waveguide unit is configured to be based on the optical waveguide The light processing function corresponding to the device slot to which the device is mounted determines the output voltage of each electrode of the variable optical waveguide, and controls the output voltage corresponding to each electrode output of the variable optical waveguide.

In the solution shown in the embodiment of the present invention, the information of the network node device may include the optical processing function corresponding to the slot of the device to which the optical waveguide device is installed, and the slot of the device may be the slot of the optical backplane, that is, the optical waveguide device is installed. After the slot, the optical processing function to be implemented, for example, the information of the network node device is what type of WSS is installed in the device slot, and information such as an electric field corresponding to the optical waveguide unit of the corresponding type of WSS. In this way, the optical waveguide unit can determine the output voltage of each electrode of the variable optical waveguide according to the light processing function corresponding to the slot of the device to which the optical waveguide device is mounted (specifically, the optical waveguide function can be stored in the optical waveguide unit. Corresponding to the output voltage of each electrode of the variable optical waveguide), and then adding a corresponding voltage to each electrode according to the determined output voltage of each electrode, so that the light processing function of the optical waveguide device can be changed. .

In a possible implementation manner, the configuration information is information of an optical signal transmission path, and the information of the optical signal transmission path includes: loss requirement information and/or downlink information of the optical signal transmission, and the downlink information is used to indicate whether the optical signal is Providing an optical waveguide unit at a network node where the optical waveguide device is located; and an optical waveguide unit configured to determine an output voltage of each electrode of the variable optical waveguide according to the loss requirement information and/or the downlink information transmitted by the optical signal, according to each determined The output voltage of the electrode controls the corresponding output voltage of each electrode output of the variable optical waveguide.

In the solution shown in the embodiment of the present invention, the configuration information is information of an optical signal transmission path, and the information of the optical signal transmission path includes loss requirement information and/or downlink information of the optical signal transmission, and the downlink information is used to indicate whether the optical signal is in the The network node where the optical waveguide device is located is off the road. The optical waveguide unit may determine the output voltage of each electrode of the variable optical waveguide according to the loss requirement information and/or the downlink information of the optical signal transmission (specifically, the loss requirement information and/or the downlink may be transmitted according to the stored optical signal. The correspondence between the information and the output voltage of each electrode of the variable optical waveguide determines the output voltage of each electrode of the variable optical waveguide), and then adds a corresponding value to each electrode according to the determined output voltage of each electrode. The voltage, that is, the performance corresponding to the light processing function of the optical waveguide device can be changed.

In a possible implementation manner, the configuration information transmitted by the configuration unit to the optical waveguide unit may be an output voltage of each electrode of the variable optical waveguide, such that the optical waveguide unit may directly depend on the output voltage of each of the received electrodes. By adding a corresponding voltage to each electrode, the light processing function of the optical waveguide device can be changed. In this case, the configuration unit can calculate the output voltage of each electrode according to the information of the device in the network node or the information of the optical signal transmission path.

In a possible implementation manner, the configuration information is information of a device in the network node, the information of the device in the network node includes a light processing function corresponding to a device slot to which the optical waveguide device is installed, and the optical waveguide unit is configured to The light processing function corresponding to the device slot to which the device is mounted determines the magnetic field information or temperature information of the variable optical waveguide, and controls the variable optical waveguide according to the magnetic field information or temperature information of the variable optical waveguide.

In the solution shown in the embodiment of the present invention, the configuration information is the information of the device in the network node, and the information of the device in the network node includes the optical processing function corresponding to the slot of the device to which the optical waveguide device is installed. The optical waveguide unit can determine the magnetic field information or the temperature information of the variable optical waveguide according to the light processing function corresponding to the slot of the device installed in the optical waveguide device. The variable optical waveguide can be controlled subsequently based on the magnetic field information or temperature information of the variable optical waveguide.

In a possible implementation manner, the configuration information is information of an optical signal transmission path, and the information of the optical signal transmission path includes: loss requirement information and/or downlink information of the optical signal transmission, and the downlink information is used to indicate whether the optical signal is Providing a path under the network node where the optical waveguide device is located; and an optical waveguide unit for determining magnetic field information or temperature information of the variable optical waveguide according to the loss requirement information and/or the downlink information transmitted by the optical signal, according to the magnetic field of the variable optical waveguide Information or temperature information that controls the variable optical waveguide.

The solution shown in the embodiment of the present invention may determine the magnetic field information or the temperature information of the variable optical waveguide based on the loss requirement information and/or the downlink information transmitted according to the optical signal. The variable optical waveguide can be controlled subsequently based on the magnetic field information or temperature information of the variable optical waveguide.

The beneficial effects brought by the technical solutions provided by the embodiments of the present invention are:

In the embodiment of the present invention, the optical waveguide device includes an optical waveguide unit and a functional unit. The optical waveguide unit is implemented by a first variable optical waveguide, and the functional unit is implemented by a fixed optical waveguide or a second variable optical waveguide, and the fixed optical waveguide is preset. The optical waveguide in which the optical signal path cannot be changed, the first variable optical waveguide and the second variable optical waveguide are optical waveguides that control the optical material to form an optical signal path based on the configuration information or eliminate the optical signal path to implement a corresponding optical processing function, wherein The optical waveguide unit is connected to the functional unit, and the functional unit is configured to implement a first optical processing function of the optical signal, and the optical waveguide unit is configured to implement a second optical processing function of the optical signal based on the configuration information. In this way, since the optical waveguide device is not realized by the optical device in the space optics, the requirement for the vibration is not high, and thus the device implementation difficulty of the transmission node can be reduced, and at the same time, since the optical waveguide device is used, the optical signal is not exposed to the air. There is no need to seal the air or reduce the need for air sealing, which in turn reduces equipment costs.

DRAWINGS

1 is a schematic structural view of an optical waveguide device according to an embodiment of the present invention;

2 is a schematic diagram of a dot matrix electrode according to an embodiment of the present invention;

3 is a schematic structural diagram of an optical waveguide device according to an embodiment of the present invention;

4(a) is a schematic structural diagram of a 1*N wavelength selective switch according to an embodiment of the present invention;

4(b) is a schematic structural diagram of an N*1 wavelength selective switch according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a wavelength selective switch of an S*T according to an embodiment of the present invention; FIG.

FIG. 6(a) is a schematic structural diagram of a 1*N wavelength selective switch according to an embodiment of the present invention;

FIG. 6(b) is a schematic structural diagram of an N*1 wavelength selective switch according to an embodiment of the present invention;

FIG. 6(c) is a schematic structural diagram of a wavelength selective switch of an S*T according to an embodiment of the present invention;

7 is a schematic structural diagram of an optical waveguide device according to an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an optical backplane according to an embodiment of the present invention; FIG.

FIG. 9(a) is a schematic structural diagram of an optical waveguide device according to an embodiment of the present invention;

FIG. 9(b) is a schematic structural diagram of an optical waveguide device according to an embodiment of the present invention;

FIG. 10 is a schematic diagram of a method for fabricating a 1*N WSS according to an embodiment of the present invention; FIG.

11 is a schematic structural view of a through slot according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a reconfigurable optical add/drop multiplexer according to an embodiment of the present invention;

FIG. 13 is a schematic structural diagram of an optical waveguide device according to an embodiment of the present invention.

illustration

1. Optical waveguide unit 2. Functional unit

21, the first interface point 22, the second interface point

23, the third interface point 24, the fourth interface point

25, the fifth interface point 26, the sixth interface point

27, the seventh interface point 28, the eighth interface point

29, the ninth interface point 210, the tenth interface point

211, the eleventh interface point 212, the twelfth interface point

213, the thirteenth interface point 214, the fourteenth interface point

215, the fifteenth interface point 216, the sixteenth interface point

3, the configuration unit

Detailed ways

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. In order to facilitate the understanding of the embodiments of the present invention, the application scenarios involved in the embodiments of the present invention and the concepts related to the nouns are first introduced.

In the embodiment of the present invention, an optical waveguide device is provided, which can be applied to an optical transmission network as a transmission node device in an optical transmission path, such as an optical waveguide device, which may be a wavelength selective switch, an optical switching matrix (or an optical switch array). Equipment, etc.

An optical waveguide that directs a dielectric structure in which an optical signal propagates, or a light guiding channel that confines light waves (or optical signals) within or near a particular medium for transmission. The medium may be an optical material or the like mentioned later, and specifically, silicon, silicon oxide, liquid crystal, or the like.

A single optical signal, a single optical signal is an optical signal modulated by data on a certain frequency component, and only when these frequency components are received can the data be completely recovered.

A single-wave optical signal, one of a single optical signal, except that the single-wave optical signal has a center wavelength.

A composite optical signal comprising a plurality of individual optical signals having different frequency components.

A multiplexed optical signal comprising a plurality of single-wave optical signals having different frequency components. That is to say, the single-wave optical signals in the combined optical signal have different center wavelengths.

The variable optical waveguide controls the optical material to form an optical signal path based on the configuration information or eliminates the optical signal path to implement a corresponding light processing function. That is, the variable optical waveguide can adjust the performance corresponding to the light processing function or the light processing function that the optical waveguide unit can implement based on the configuration information. Specifically, the optical material is controlled based on the configuration information to form an optical signal path that can be used to transmit the optical signal, or to eliminate an existing optical signal path for transmitting the optical signal. Forming an optical signal path for transmitting an optical signal may include two cases, one is to form an optical signal path on the basis of no optical signal path for transmitting the optical signal, and the other is to be used for transmission. Based on the optical signal path of the optical signal, the shape of the optical signal path for transmitting the optical signal is changed. There are many ways to control optical materials based on configuration information. For example, the optical material is a liquid crystal, and a dot matrix electrode is used. Each region of the optical material corresponds to a dot array electrode for controlling the refractive index of the optical material, and the configuration information includes a voltage application method corresponding to the dot matrix electrode and/or Or which electrodes need to change the voltage, etc., in the preset area of the optical material corresponding to the dot matrix electrode plus the corresponding voltage (or no corresponding voltage, plus or no voltage, depending on the type of liquid crystal material), so that the It is assumed that the refractive index of the region is greater than the refractive index of other regions of the optical material, so that an optical signal path can be formed in the predetermined region.

The fixed optical waveguide, corresponding to the variable optical waveguide, is an optical waveguide whose preset optical signal path cannot be changed, that is, after the fixed optical waveguide is completed, the preset optical signal path is also completed, and cannot be changed in the following. . The preset optical signal path refers to a path that is pre-established and becomes a precondition (or can be an optical signal path) of the optical signal path. Once the optical signal is input to the path, it becomes an optical signal path, and if no light is input to the path, Signal, this path cannot be called an optical signal path in the exact sense. Thus, under normal circumstances, the light processing function implemented by the fixed optical waveguide cannot be changed. Generally, the performance corresponding to the light processing function implemented by the fixed optical waveguide cannot be changed after the fabrication is completed.

An embodiment of the present invention provides an optical waveguide device. As shown in FIG. 1, the optical waveguide device includes an optical waveguide unit 1 and a functional unit 2, and the optical waveguide unit 1 is implemented by a first variable optical waveguide, and the functional unit 2 is fixed by The optical waveguide or the second variable optical waveguide is implemented. The fixed optical waveguide is an optical waveguide whose preset optical signal path cannot be changed. The first variable optical waveguide and the second variable optical waveguide are used to control the optical material to form an optical signal based on the configuration information. a path or an optical waveguide that eliminates an optical signal path to implement a corresponding optical processing function, wherein: the optical waveguide unit 1 is connected to the functional unit 2; the functional unit 2 is configured to implement a first optical processing function of the optical signal; and the optical waveguide unit 1 is used The second light processing function of the optical signal is implemented based on the configuration information; the functions performed by the first light processing function and the second light processing function are different or performance is different.

In implementation, the optical waveguide device comprises an optical waveguide unit 1 and a functional unit 2, the optical waveguide unit 1 being connected to the functional unit 2, the optical waveguide unit 1 being realized by a first variable optical waveguide. The optical waveguide unit 1 is implemented by the first variable optical waveguide, and the optical waveguide unit 1 may be completely realized by the first variable optical waveguide, or the optical waveguide unit 1 may include the first variable optical waveguide (or partially by the first Variable optical waveguide implementation). The first variable optical waveguide is an optical waveguide that controls the optical material to form an optical signal path based on the configuration information or eliminates the optical signal path to achieve a corresponding optical processing function. The configuration information may be preset by a technician and stored in the optical waveguide device, and the configuration information may be information for generating an electric field, specifically, an output voltage of each electrode of the first variable optical waveguide, such as an electrode plus The voltage value or the like may be a voltage value of an electrode of the electrode of the first variable optical waveguide that needs to change the output voltage. There are many ways to control optical materials based on configuration information. For example, the optical material is a liquid crystal, and a dot matrix electrode is used. The configuration information includes a voltage application method corresponding to the dot matrix electrode and/or which electrodes need to change the voltage, and the dot matrix electrode corresponding to the predetermined region of the optical material is added. The voltage (or without the corresponding voltage, with or without voltage depending on the type of liquid crystal material), causes the refractive index of the predetermined region to be greater than the refractive index of other regions of the optical material, thereby forming an optical signal in a predetermined region path. The position or shape of the preset area is different, and various light processing functions can be realized, for example, an optical signal path function, an optical signal exchange function, a spot conversion function of an optical signal, an optical signal based on a power split function, and an optical signal based on The power combining function, the optical signal dispersion function, the combining function of the optical signal based on the center wavelength, the splitting function of the optical signal based on the center wavelength, the optical signal transmission delay function, the optical signal filtering function, and the like. For example, the optical material is a magnetic fluid, and a magnetic field may be used to change the refractive index of the predetermined region of the optical material, so that the refractive index of the predetermined region is greater than the refractive index of other regions of the optical material, so that it can be formed in a predetermined region. The optical signal path can also be changed by using a temperature control method to change the refractive index of the predetermined region, thereby implementing a variable optical waveguide. In addition, an electric field, a magnetic field, or a temperature can be used to change a preset region in the photonic crystal. The medium structure enables the performance of different light processing functions or light processing functions. In these cases, the configuration information accordingly generates information such as an electric field, a magnetic field, or a temperature.

The optical waveguide unit 1 can be used to implement a second optical processing function, and the second optical processing function can be an optical signal path function, an optical signal exchange function, a spot conversion function of the optical signal, an optical signal based power split function, and an optical signal based power. The combining function, the optical signal dispersion function, the optical signal based on the central wavelength combining function, the optical signal based on the central wavelength splitting function, the optical signal transmission delay function, and the optical signal filtering function. The optical signal path function is to transmit the optical signal; the optical signal exchange function is to exchange the optical signal; the spot change function of the optical signal is to transform the spot of the optical signal; the optical signal based on the power split function is based on the optical signal The power is divided into multiple optical signals; the optical signal based on the power combining function is to combine the multiple optical signals based on the power to synthesize one optical signal; the optical signal dispersion function is to divide the optical signal into multiple channels containing different frequency components according to the frequency component. Signal, or combine multiple optical signals containing different frequency components into one combined optical signal; the optical signal is based on the central wavelength combining function and the central wavelength splitting function, and is similar to the optical signal dispersion function, except that the center wavelength is combined In the function of the road and the function based on the central wavelength splitting, the optical signal has a central wavelength, and the optical signal is based on the central wavelength combining function, and combines multiple optical signals having different central wavelengths into one optical signal; the optical signal is based on the central wavelength splitting function. Refers to separating one optical signal into multiple optical signals having different center wavelengths; Function of the signal propagation delay in the transmission process refers to an optical signal, the optical transmission signal to delay, delay value to achieve a desired optical signal transmission; filtering the optical signal is an optical signal is filtered.

The functional unit 2 can be realized by a fixed optical waveguide or a second variable optical waveguide. The functional unit 2 is realized by a fixed optical waveguide or a second variable optical waveguide, and the functional unit 2 may be completely realized by the fixed optical waveguide, or the functional unit 2 may be completely realized by the second variable optical waveguide, or may be the functional unit 2 The fixed optical waveguide is included (or partially realized by the fixed optical waveguide), and the second variable optical waveguide (or partially implemented by the second variable optical waveguide) may be included in the functional unit 2, or may be included in the functional unit 2 The fixed optical waveguide and the second variable optical waveguide (or the functional unit 2 is partially realized by the fixed optical waveguide and the second variable optical waveguide), and the functional unit 2 may be completely composed of the fixed optical waveguide and the second variable optical waveguide achieve. The fixed optical waveguide corresponds to the variable optical waveguide, and refers to an optical waveguide whose preset optical signal path cannot be changed. When the functional unit 2 is completely realized by the fixed optical waveguide, the possible transmission path of the optical signal when passing through the functional unit 2 cannot be changed. For example, a possible transmission path cannot be added, that is, the implemented optical processing function cannot be adjusted based on the configuration information. When the functional unit 2 is implemented by a fixed optical waveguide, an arrayed waveguide grating (Arrayed waveguide grating) can be fabricated by using a silicon waveguide or a silicon oxide waveguide. Waveguide Grating, AWG) or Etched Diffraction Grating (EDG) or other types of gratings. The implementation mechanism and characteristics of the second variable optical waveguide are similar to those of the first variable optical waveguide. For a detailed description, refer to the description of the first variable optical waveguide, and details are not described herein again. When the functional unit 2 is implemented by the second variable optical waveguide, the functions that the functional unit 2 can implement can be configured based on the configuration information, such as the functional unit 2 can be configured to implement the optical signal path function, or the functional unit 2 can be configured to implement the light. Signal exchange function, etc. The functional unit 2 can be used to implement a first light processing function, and the first light processing function can include an optical signal path function, an optical signal exchange function, a spot conversion function of the optical signal, an optical signal based on the power split function, and an optical signal based on the power combination. Road function, optical signal dispersion function, optical signal based on central wavelength combining function, optical signal based on central wavelength splitting function, optical signal transmission delay function, optical signal filtering function, one or more of these kinds of light processing The function has been explained in detail above and will not be described here.

Optionally, the second variable optical waveguide is smoother than the first variable optical waveguide, or the optical loss of the second variable optical waveguide is lower than the first variable optical waveguide.

In an implementation, the second variable optical waveguide may be an optical waveguide that generates an electric field based on the configuration information to control the liquid crystal generating optical path to implement a corresponding optical processing function, and the voltage corresponding to the liquid crystal molecules is added to the configuration information corresponding to the second variable optical waveguide. Dense, if the dot matrix electrode is applied with voltage, as shown in FIG. 2, specifically, the electrode size corresponding to the second variable optical waveguide is smaller than the corresponding electrode size of the first variable optical waveguide, or the second variable The number of layers of the electrode corresponding to the optical waveguide is greater than the number of layers of the electrode corresponding to the first variable optical waveguide, so that the control area corresponding to each electrode is also smaller, and the optical material can be controlled more finely, and thus the second variable light The smoothness of the waveguide is higher than that of the first variable optical waveguide, or the optical signal transmission of the second variable optical waveguide has a lower unit loss than the first variable optical waveguide.

Optionally, the first light processing function is a dispersion function, and the dispersion function is: separating one optical signal according to a frequency component, or synthesizing multiple optical signals including different frequency components into one optical signal. Specifically, it can be divided into two types: one is to divide one combined optical signal into multiple single optical signals containing different frequency components, or to combine multiple optical signals containing different frequency components into one combined optical signal; The multiplexed optical signal is divided into a plurality of single-wave optical signals containing different frequency components, or a single-wave optical signal containing multiple frequency components is combined into one multiplexed optical signal.

Alternatively, the configuration information may include any one of an output voltage of each electrode of the first variable optical waveguide, magnetic field information of the first variable optical waveguide, and temperature information of the first variable optical waveguide.

In an implementation, the configuration information may be preset by a technician and stored in the optical waveguide device, and the configuration information may be information for generating an electric field, specifically, an output voltage of each electrode of the first variable optical waveguide, such as The voltage value or the like applied to the electrode may be a voltage value of an electrode of the electrode of the first variable optical waveguide that needs to change the output voltage. The configuration information can also be magnetic field information or temperature information.

Alternatively, the optical waveguide device can be WSS, correspondingly:

As shown in FIG. 3, the functional unit 2 comprises at least one first functional unit 2 and at least one second functional unit 2, the first functional unit 2 for separating one optical signal according to a frequency component, and the second functional unit 2 for Combining multiple optical signals including different frequency components into one optical signal, the first functional unit 2 includes a first interface point 21 and a plurality of second interface points 22, and the second functional unit 2 includes a plurality of third interface points 23 and a fourth interface point 24; the first interface point 21 and the fourth interface point 24 are connected to an interface point corresponding to the optical fiber or the optical fiber; and the optical waveguide unit 1 is configured to connect the second interface point 22 and the third interface point 23 based on the configuration information. Forming an optical signal path between the second interface point 22 and the third interface point 23.

In an implementation, the functional unit 2 includes at least one first functional unit 2 and at least one second functional unit 2, and the first functional unit 2 can be used to separate one optical signal according to frequency components to obtain multiple channels containing different frequency components. The optical signal, the second functional unit 2 can be used to combine multiple optical signals containing different frequency components into one optical signal. The first functional unit 2 comprises a first interface point 21 and a plurality of second interface points 22, the second functional unit 2 comprises a plurality of third interface points 23 and a fourth interface point 24, the first interface point 21 and the fourth The interface point 24 can be connected to the optical fiber or to the interface point corresponding to the optical fiber. The optical fiber connected to the first interface point 21 and the fourth interface point 24 is generally a line fiber.

When an optical signal passes through the first interface point 21 of the first functional unit 2, the first functional unit 2 can separate the optical signals of one optical signal according to the frequency components, and obtain multiple optical signals containing different frequency components, and respectively transmit the optical signals to multiple The second interface point 22, because the optical waveguide unit 1 can generate or change an electric field, a magnetic field or a temperature or the like based on the configuration information, to control the optical material to connect the second interface point 22 and the third interface point 23 to form the second interface point 22 and The optical signal path between the three interface points 23, such that multiple optical signals containing different frequency components can be transmitted to the plurality of third interface points 23 via the optical signal path between the second interface point 22 and the third interface point 23. The second functional unit 2 can synthesize the multiple optical signals received by the plurality of third interface points 23 to obtain one optical signal, which is transmitted to the optical fiber through the fourth interface point 24. In this way, the function of WSS can be realized, that is, the function of wavelength selection exchange is realized.

It should be noted that the configuration information includes the exchange configuration information or the cross-connection configuration information of the optical signal, so that the optical signal path between the second interface point 22 and the third interface point 23 is generated, and the optical signal is generated based on the generated The optical signal path is transmitted, and the wavelength selective switching function is realized.

It should be noted that the optical signals transmitted by the plurality of second interface points 22 belonging to a certain first functional unit 2 mentioned above are different in frequency components.

It should also be noted that the interface point may be a structure in which optical signal transmission actually exists, such as a coupling structure of a fiber coupled into an optical waveguide device, and the interface point may also be a virtual interface interface in the optical waveguide, for example, to indicate different A reference point for the connection between functional units or different media structures.

Optionally, the optical waveguide device is 1*N WSS, N is an integer, and the functional unit 2 includes a first functional unit 2 and a plurality of second functional units 2, and the first interface point 21 and the fourth interface point 24 are combined. The waveguide signal interface point or the composite optical signal interface point, the second interface point 22 and the third interface point 23 are single-wave optical signal interface points or single optical signal interface points. For example, when the first interface point 21 and the fourth interface point 24 are the combined optical signal interface point, the second interface point 22, and the third interface point 23 are single-wave optical signal interface points, the optical waveguide device is a fixed grid (Fixed Grid). 1*N WSS; when the first interface point 21 and the fourth interface point 24 are composite optical signal interface points, the second interface point 22 and the third interface point 23 are single optical signal interface points, the optical waveguide device is flexible 1*N WSS of the Flexible Grid.

In an implementation, as shown in FIG. 4( a ), the first interface point 21 and the fourth interface point 24 are composite optical signal interface points, and the second interface point 22 and the third interface point 23 are single optical signal interface points, and functions. The unit 2 includes a first functional unit 2 and N second functional units 2, N being greater than or equal to 2, when a combined optical signal is transmitted through the line optical fiber to the first interface point 21 of the first functional unit 2, the first function The unit 2 can separate the combined optical signals according to the frequency components, and obtain a plurality of single optical signals including different frequency components, which are respectively transmitted to the plurality of second interface points 22, because the optical waveguide unit 1 can generate or change the electric field based on the configuration information. , a magnetic field, a temperature, etc. to control the optical material to connect the second interface point 22 and the third interface point 23 to form an optical signal path between the second interface point 22 and the third interface point 23, such that a plurality of different frequency components are individually The optical signal can be transmitted to the plurality of third interface points 23 of the plurality of second functional units 2, that is, to the plurality of second functional units 2, and each of the plurality of second functional units 2 can be used for multiple First Multi-channel optical signals of different frequency components of a single interface point 23 received thereby give way combined light signal, the transmission 24 to the optical fiber via the fourth interface point, since each of the second functional unit 2 are output one combined light signal. In this way, the 1*N WSS can divide one combined optical signal into multiple synthesized optical signals and transmit them through different optical fibers.

It should be noted that the optical signal transmitted to the first interface point 21 of the first functional unit 2 is generally a combined optical signal, and after passing through the first functional unit 2, it is dispersed into a plurality of single optical signals containing different frequency components.

In addition, the first interface point 21 and the fourth interface point 24 are multiplexed optical signal interface points, the second interface point 22, and the third interface point 23 are single-wave optical signal interface points, which are substantially the same as described above for the 1*N WSS. As long as the "composite optical signal" in the above description is replaced by "combined optical signal", "single optical signal" is replaced with "single-wave optical signal", and the rest of the process is identical.

It should be noted that the configuration information includes the exchange configuration information or the cross-connection configuration information of the optical signal, so that the optical signal path between the second interface point 22 and the third interface point 23 is generated based on the configuration information. The optical signal is transmitted based on the generated optical signal path, and between the second interface point 22 and the third interface point 23, a wavelength selective switching function is also implemented.

Optionally, the optical waveguide device is an N*1 WSS, the functional unit includes N first functional units 2 and a second functional unit 2, and the first interface point 21 and the fourth interface point 24 are multiplexed optical signal interface points or The optical signal interface points are synthesized, and the second interface point 22 and the third interface point 23 are single-wave optical signal interface points or single optical signal interface points. For example, when the first interface point 21 and the fourth interface point 24 are the combined optical signal interface point, the second interface point 22, and the third interface point 23 are single-wave optical signal interface points, the optical waveguide device is a fixed grid N*. 1WSS; when the first interface point 21 and the fourth interface point 24 are composite optical signal interface points, the second interface point 22 and the third interface point 23 are single optical signal interface points, the optical waveguide device is a flexible grid N* 1WSS.

In the implementation, the first interface point 21 and the fourth interface point 24 are composite optical signal interface points, and the second interface point 22 and the third interface point 23 are single optical signal interface points, as shown in FIG. 4(b), When the waveguide device is N*1 WSS, the functional unit includes N first functional units 2 and one second functional unit 2, N is greater than or equal to 2, when one combined optical signal is transmitted to a certain first interface point through the line optical fiber. At 21 o'clock, the first functional unit 2 can separate the combined optical signals according to the frequency components, and obtain a plurality of single optical signals including different frequency components, which are respectively transmitted to the plurality of second interface points 22, because the optical waveguide unit 1 can be based on Configuring information, generating or changing an electric field, a magnetic field, a temperature, etc. to control the optical material to connect the second interface point 22 and the third interface point 23 to form an optical signal path between the second interface point 22 and the third interface point 23, such that Multiple multiplexed optical signals containing different frequency components can be transmitted to the plurality of third interface points 23 of the second functional unit 2 via the plurality of second interface points 22, that is, the second functional unit 2 can be transmitted, and the second functional unit 2 can Too many A single light signal multiplexer 23 receives the third interface point comprises different frequency components are synthesized to obtain synthetic way an optical signal, the transmission 24 via a fourth interface points to the optical fiber. In this way, the N*1 WSS can synthesize multiple optical signals into one combined optical signal and transmit it through the optical fiber connected by the second functional unit 2.

In addition, the first interface point 21 and the fourth interface point 24 are multiplexed optical signal interface points, the second interface point 22, and the third interface point 23 are single-wave optical signal interface points, which are substantially the same as described above for the N*1 WSS. As long as the "composite optical signal" in the above description is replaced by "combined optical signal", "single optical signal" is replaced with "single-wave optical signal", and the rest of the process is identical.

It should be noted that the configuration information includes the switching configuration information or the cross-connection configuration information of the optical signal, so that the optical signal path between the second interface point 22 and the third interface point 23 is generated based on the configuration information, and the optical signal Based on the generated optical signal path, a wavelength selective switching function is implemented between the second interface point 22 and the third interface point 23.

In addition, the optical waveguide device may also be an M*N WSS, the functional unit 2 includes M first functional units 2 and N second functional units 2, and the first interface point 21 and the fourth interface point 24 are combined optical signal interfaces. Point or composite optical signal interface point, second interface point 22 and third interface point 23 are single wave optical signal interface points or single optical signal interface points. M and N are integers. The device implemented by the device is similar to the above 1*N WSS and N*1 WSS, and will not be described again.

Optionally, as shown in FIG. 5, the optical waveguide device may be another type of WSS, and the functional unit 2 includes at least one third functional unit 2, and the third functional unit 2 is configured to separate one optical signal according to frequency components. Or, for synthesizing optical signals of multiple different frequency components into one optical signal, the third functional unit 2 includes a fifth interface point 25 and a plurality of sixth interface points 26; the fifth interface point 25 corresponds to the optical fiber or the optical fiber The interface is connected by an interface; the optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber; and the optical waveguide unit is configured to connect the sixth interface point 26 and the optical fiber based on the configuration information to form an optical signal path between the sixth interface point 26 and the optical fiber. Or connecting the sixth interface point 26 to the interface point corresponding to the optical fiber to form an optical signal path between the sixth interface point 26 and the interface point corresponding to the optical fiber.

Wherein, when the optical waveguide device is WSS of S*T, it indicates that an S-channel multiplexed optical signal or a composite optical signal can be input, and an output of the T-channel optical signal is obtained, and the fifth interface point 25 is a multiplexed optical signal or a combined optical signal interface. Point, the sixth interface point 26 is a single-wave optical signal or a single optical signal interface point, the multiplexed optical signal interface point refers to an interface point for transmitting a multiplexed optical signal, and the composite optical signal interface point refers to an interface point for transmitting a synthesized optical signal, and a single-wave optical signal interface A point refers to an interface point that transmits a single-wave optical signal, and a single optical signal interface point refers to an interface point that transmits a single optical signal. S*T's WSS is typically used to connect to a transmitter or receiver.

In an implementation, the fifth interface point 25 is a composite optical signal interface point, the sixth interface point 26 is a single optical signal interface point, and the optical waveguide device is another type of WSS, the functional unit 2 includes at least one third functional unit. 2. Each of the third functional units 2 can be used to separate one combined optical signal according to frequency components to obtain a plurality of individual optical signals containing different frequency components. Each third functional unit 2 includes a first fifth interface point 25 and a plurality of sixth interface points 26, the fifth interface point 25 being connected to the optical fiber, when an optical signal passes through a fifth interface of a certain third functional unit 2 When the input is 25, the third functional unit 2 can separate the one combined optical signal according to the frequency component to obtain a plurality of single optical signals including different frequency components, and respectively transmit to different sixth interface points 26 (that is, all the way) A single optical signal is sent to a sixth interface point 26), or a plurality of individual optical signals containing different frequency components are transmitted to a sixth interface point 26. Since the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, or the like based on the configuration information to control the optical material to connect the sixth interface point 26 and the optical fiber, form an optical signal path between the sixth interface point 26 and the optical fiber, or The waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material to connect the sixth interface point 26 with the interface point corresponding to the optical fiber, and form a light between the sixth interface point 26 and the interface point corresponding to the optical fiber. signal path. Thus, the optical signal received through the sixth interface point 26 can be transmitted to the optical fiber through the optical signal path between the sixth interface point 26 and the optical fiber established by the optical waveguide unit 1, or the sixth interface established by the optical waveguide unit. The optical signal path between the point 26 and the interface point corresponding to the optical fiber is transmitted to the optical fiber.

The fifth interface point 25 is a multiplexed signal interface point, and the sixth interface point 26 is a single-wave optical signal interface point, which is basically the same as the above-mentioned WSS description for the S*T, as long as the "composite optical signal" in the above description is replaced with " The multiplexed optical signal", "single optical signal" can be replaced by "single-wave optical signal", and the rest of the process is identical.

Alternatively, the fifth interface point 25 is a composite optical signal interface point, and the sixth interface point 26 is a single optical signal interface point, and the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material connection. The six interface points 26 and the optical fibers form an optical signal path between the sixth interface point 26 and the optical fiber, or the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the sixth interface of the optical material connection. Point 26 and the interface point corresponding to the optical fiber form an optical signal path between the sixth interface point 26 and the interface point corresponding to the optical fiber. Thus, the received optical signal through the sixth interface point 26 can be transmitted to the third functional unit 2. The third functional unit 2 can synthesize a single optical signal from a plurality of sixth interface points 26 (in this case, a single optical signal can be input through each interface point 26), and send the combined optical signal to The fifth interface point 25, or a plurality of single optical signals input by the plurality of sixth interface points 26 (in this case, at least one single optical signal can be input through each interface point 26), synthesizes one combined optical signal. Then, the optical signal path between the fifth interface point 25 and the optical fiber is transmitted to the optical fiber, or is transmitted to the optical fiber through the optical signal path between the fifth interface point 25 and the interface point corresponding to the optical fiber.

It should be noted that the configuration information includes the exchange configuration information or the cross-connection configuration information of the optical signal, so that the optical signal path between the sixth interface point 26 and the optical fiber is generated based on the configuration information, and the optical signal is based on the generated light. The signal path is transmitted, and a wavelength selective switching function is realized between the sixth interface point 26 and the optical fiber.

Optionally, during actual use, the optical waveguide device may be selectively configured as any one or more of 1*N WSS, M*N WSS, and S*T WSS, and the corresponding processing may be as follows:

The number of functional units 2 is greater than or equal to 2, and the functional unit 2 includes a seventh interface point 27 and a plurality of eighth interface points 28; the optical waveguide unit 1 is connected to an interface point corresponding to an optical fiber or an optical fiber; and the functional unit 2 is used when When the optical signal is received through the seventh interface point 27, the received optical signal is separated into multiple optical signals according to the frequency component, and output through the eighth interface point 28, and different frequencies are received through the eighth interface point 28, respectively. When the component optical signals are received, the received optical signals of different frequency components are combined into one optical signal and output through the seventh interface point 27; the optical waveguide unit 1 is configured to connect the eighth interface of the different functional units 2 based on the configuration information. Point 28, forming an optical signal path between the eighth interface points 28 of the different functional units 2, and an interface point connecting the seventh interface point 27 with the optical fiber or the optical fiber to form an interface corresponding to the optical fiber or the optical fiber of the seventh interface point 27. An optical signal path between the points; or, for connecting the interface point corresponding to the optical fiber or the optical fiber to the seventh interface point 27 based on the configuration information, forming the seventh interface point 27 and the optical fiber or optical fiber pair An optical signal path between the interface points, and an eighth connection point 28 interfaces with fiber or the corresponding interface points, the optical signal path is formed between the point 28 and the corresponding fiber or interface point eighth interface.

The seventh interface point 27 may be referred to as a combined optical signal or a composite optical signal interface point, and may be used to receive a combined optical signal or a composite optical signal. The eighth interface point 28 may be a single-wave optical signal or a single optical signal interface point. Can be used to receive a single-wave optical signal or a single optical signal.

In the implementation, as shown in FIG. 6(a), the seventh interface point 27 is a composite optical signal interface point, and the eighth interface point 28 is a single optical signal interface point. When the optical waveguide device is 1*N WSS, it is equivalent. There is a functional unit 2 for dividing a combined optical signal into a single optical signal, which is respectively transmitted to N functional units 2, and each of the N functional units 2 synthesizes the received multiple optical signals. , get a synthetic optical signal, because there are N functional units 2, so you will get the output of N optical signals.

The number of functional units 2 is greater than or equal to 2, each functional unit 2 includes a seventh interface point 27 and a plurality of eighth interface points 28, and the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information. Controlling the optical material to connect the optical fiber to the seventh interface point 27, forming an optical signal path between the optical fiber and the seventh interface point 27, or generating or changing an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the corresponding optical fiber connection fiber The interface point and the seventh interface point 27 form an optical signal path between the interface point corresponding to the optical fiber and the seventh interface point 27.

When an integrated optical signal is transmitted through the optical signal path between the optical fiber established by the optical waveguide unit 1 and the seventh interface point 27 to the seventh interface point 27, or an interface point corresponding to the optical fiber established by the optical waveguide unit 1 and a function The optical signal path between the seventh interface point 27 of the unit 2 is transmitted to the seventh interface point 27, and a functional unit 2 to which the seventh interface point 27 belongs can separate the received optical signal according to the frequency component. The single optical signal is transmitted to the eighth interface point 28 of the N functional units 2 through the optical signal path between the eighth interface point 28 of the one functional unit 2 and the eighth interface point 28 of the N functional units 2, respectively. The N functional units 2 can receive a plurality of single optical signals received by the eighth interface point 28, and can synthesize one combined optical signal and send them to the seventh interface point 27 of the self. The optical signal between the seventh interface point 27 and the optical fiber is transmitted to the optical fiber, or the optical signal between the interface point corresponding to the optical fiber through the seventh interface point 27 is transmitted to the optical fiber for output.

It should be noted that the above-mentioned "one functional unit 2" and "N functional unit 2" are specifically referred to, that is, "one functional unit 2" is used for separation of optical signals, "N functional units 2 "Used for the synthesis of optical signals.

Similarly, as shown in FIG. 6(b), the seventh interface point 27 is a composite optical signal interface point, the eighth interface point 28 is a single optical signal interface point, and the optical waveguide device can also be an N*1 WSS, when the optical waveguide When the device is N*1 WSS, each of the N functional units 2 is used to divide one combined optical signal into multiple single optical signals and transmit to a functional unit 2, the one functional unit 2 The received multiple optical signals are combined to obtain one combined optical signal for output.

Each functional unit 2 includes a seventh interface point 27 and a plurality of eighth interface points 28, and the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material connecting fiber and the seventh interface point. 27, forming an optical signal path between the optical fiber and the seventh interface point 27, or generating or changing an electric field, a magnetic field, a temperature, etc. based on the configuration information to control an interface point corresponding to the optical material connecting the optical fiber and the seventh interface point 27, forming The optical signal path between the interface point corresponding to the optical fiber and the seventh interface point 27.

When the multi-path optical signals are respectively transmitted through the optical signal path between the optical fiber established by the optical waveguide unit 1 and the N seventh interface points 27, to the N seventh interface points 27, or the interfaces corresponding to the optical fibers established by the optical waveguide unit 1 The optical signal path between the point and the N seventh interface points 27 is transmitted to the N seventh interface points 27, and the N functional units 2 to which the N seventh interface points 27 respectively belong can receive the received optical signals according to the frequency components. Separating, obtaining a plurality of single optical signals, respectively, through an optical signal path between the eighth interface point 28 of a functional unit 2, to an eighth interface point 28 of the one functional unit 2, the one functional unit 2 The plurality of single optical signals received by the eighth interface point 28 are combined to form an optical signal comprising a plurality of different frequency components (ie, a combined optical signal), and sent to the seventh interface point 27 of the one functional unit 2, through the seventh The optical signal path between the interface point 27 and the optical fiber is transmitted to the optical fiber, or the optical signal between the interface point corresponding to the optical fiber through the seventh interface point 27 is transmitted to the optical fiber for output.

It should be noted that the above-mentioned "one functional unit 2" and "N functional unit 2" are specifically referred to, that is, "one functional unit 2" is used for synthesizing optical signals, "N functional units 2 "Used for separation of optical signals.

As shown in FIG. 6(c), the seventh interface point 27 is a composite optical signal interface point, and the eighth interface point 28 is a single optical signal interface point. When the optical waveguide device is S*T WSS, it corresponds to S. Each functional unit 2 in the functional unit 2 is used to divide one optical signal into a single optical signal of multiple different frequency components, and finally output a T optical signal.

The optical waveguide unit 1 may generate or change an electric field, a magnetic field, a temperature, or the like based on the configuration information to control the optical material connecting fiber and the seventh interface point 27 to form an optical signal path between the optical fiber and the seventh interface point 27, or based on the configuration. The information, the electric field, the magnetic field, the temperature, and the like are generated or changed to control the interface point corresponding to the optical material connecting the optical fiber and the seventh interface point 27 to form an optical signal path between the interface point corresponding to the optical fiber and the seventh interface point 27.

When the optical signal path between the optical fiber established by the optical waveguide unit 1 and the seventh interface point 27 is transmitted to the seventh interface point 27, or the optical fiber waveguide unit 1 establishes an interface point corresponding to the optical fiber and the seventh The optical signal path between the interface points 27 is transmitted to the seventh interface point 27, and the functional unit 2 to which the seventh interface point 27 belongs can separate the received composite optical signal according to the frequency component to obtain a plurality of single optical signals. They are sent to their own eighth interface point 28, or some of the obtained multiple optical signals are transmitted to an eighth interface point 28. Then, the optical signal path between the interface point corresponding to the optical fiber or the optical fiber through the eighth interface point 28 is sent to the optical fiber for output.

In the above 1*N WSS, N*1 WSS and S*T WSS, the seventh interface point 27 is based on the composite optical signal interface point, and the eighth interface point 28 is described as a single optical signal interface point. If the seventh interface point 27 is a multiplexed signal interface point, the eighth interface point 28 is a single-wave optical signal interface point, which is substantially the same as described above for the optical waveguide device, as long as the "composite optical signal" in the above description is replaced with " The multiplexed optical signal", "single optical signal" can be replaced by "single-wave optical signal", and the rest of the process is identical.

Optionally, when the optical waveguide device is WSS, in order to save the transmission path of the optical signal in the optical waveguide unit 1, the functional unit 2 can be implemented by the second variable optical waveguide, and the corresponding processing can be as follows:

As shown in FIG. 7, when the functional unit 2 is implemented by the second variable optical waveguide, both the optical waveguide unit 1 and the functional unit 2 are realized by the variable optical waveguide, except that the optical waveguide unit 1 is passed through the first variable. The optical waveguide realizes that the second variable optical waveguide is smoother than the first variable optical waveguide, or the second variable optical waveguide has a lower unit loss than the first variable optical waveguide (the difference between them is already As detailed above, it will not be repeated here.) In a specific implementation, the first variable optical waveguide 1 and the second variable optical waveguide 1 may use the same liquid crystal material, but the second variable optical waveguide 1 corresponds to a dot matrix electrode denser than the first variable optical waveguide. 1 corresponds to the intensity of the dot matrix electrode.

The number of the functional units 2 is greater than or equal to 2. The functional unit 2 includes a fifteenth interface point 215 and a plurality of sixteenth interface points 216. The optical waveguide unit 1 is connected to an interface point corresponding to an optical fiber or an optical fiber, and the optical waveguide unit 1 can be Generating or changing an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material connecting fiber and the fifteenth interface point 215 to form an optical signal path between the optical fiber and the fifteenth interface point 215, or generating based on the configuration information Or changing the electric field, the magnetic field, the temperature, etc. to control the interface point corresponding to the optical material connecting fiber and the fifteenth interface point 215, forming an optical signal path between the interface point corresponding to the optical fiber and the fifteenth interface point 215.

The fifteenth interface point 215 is a composite optical signal node, and the sixteenth interface point 216 is a single optical signal interface point. When one synthetic optical signal passes through an optical signal between an interface point corresponding to the optical fiber or the optical fiber and the fifteenth interface point 215, When the path is transmitted to the fifteenth interface point 215, the functional unit 2 to which the fifteenth interface point 215 belongs may divide the received combined optical signal into multiple single optical signals according to the frequency component, and send the signal to the functional unit. The sixteenth interface point 216 of the second optical signal is transmitted to the other functional unit 2 through the optical signal path between the sixteenth interface point 216 and the sixteenth interface point 216 of the other functional unit 2, and the other Each functional unit 2 in the functional unit 2 can synthesize the multiple single optical signals received through the sixteenth interface point 216 to obtain one combined optical signal, and each functional unit 2 in the other functional units 2 can pass the fifteenth The optical signal path between the interface point 215 and the interface point corresponding to the optical fiber or the optical fiber transmits the obtained combined optical signal to the optical fiber for output.

It should be noted that since both the optical waveguide unit 1 and the functional unit 2 are realized by the variable optical waveguide, the functional unit 2 can be placed in the middle of the optical waveguide unit 1 to shorten the connection length of the optical waveguide unit 1 and the functional unit 2. The transmission path of the optical signal in the optical waveguide unit 1 is saved.

It should be noted that the WSS of the optical waveguide device 1*N is described as an example. The WSS of N*1, the WSS of M*N, and the WSS of S*T are similar, and will not be described in detail.

In addition, the fifteenth interface point 215 is a multiplexed optical signal interface point, and the sixteenth interface point 216 is a single-wave optical signal interface point, which is substantially the same as the above description of the optical waveguide device, as long as the "composite optical signal" in the above description is used. Replace with "combined optical signal", "single optical signal" is replaced by "single-wave optical signal", and the rest of the process is identical.

It should be noted that, in the structure of the two types of optical waveguide devices described above, the optical waveguide device may be 1*N WSS, M*N WSS, or S*T WSS. It can be 1*N WSS, which can remove the application limit of WSS on the optical backplane, which is due to:

In the prior art, 1*N WSS, N*1 WSS, M*N WSS, and S*T WSS are all produced differently. When a WSS is completed, the WSS is determined. It is the light processing function of 1*N WSS, N*1 WSS, M*N WSS and S*T WSS, which means that the WSS light processing function has been fixed. WSS is usually inserted in the slot set on the optical backplane. Because the optical fiber connection between the slots is fixed in the optical backplane, and the slots are connected to the receiver and the transmitter is fixed, different types of WSS are used. You need to install it in a fixed slot to implement its own optical processing function. For example, as shown in Figure 8, there are a total of 9 slots (simplified structure), and the three slots in the top row can only be inserted. 1*N WSS, and the first two slots in the middle row can only be inserted into the S*T WSS. The bottom three slots and the last slot in the middle row can only be inserted into the N*1 WSS. However, in actual use, the receiver and transmitter of the optical backplane connected to the node equipment in the optical transmission network may be different, and the number of the optical fibers to be connected is also different, so the 1*N WSS and S to be connected are required. *T's WSS number is also different. Since the 1*N WSS and S*T WSS implement different light processing functions, then the S*T WSS slot is insufficient, even if 1*N The slot of the WSS is free, and it cannot be used to install the WSS of the S*T. You need to increase the slot in the optical backplane to increase the slot. Construction cost of the optical transport network.

In the embodiment of the present invention, if the required amount of the WSS is less than the preset total amount, the WSS of the S*T or the WSS of the 1*N may be generated based on the slot configuration information of the optical backplane. Therefore, it is not necessary to increase the slot of the optical backplane, thereby reducing the cost of constructing the optical transport network.

In addition, the WSS in the prior art is implemented based on optical devices (such as lenses, prisms, etc.) in the space optics, and the vibration requirements are relatively high, and the implementation is difficult. However, in the embodiment of the present invention, the fixed optical waveguide and the fixed optical waveguide are used. Variable optical waveguides are not required for vibration, which can reduce the difficulty of WSS implementation.

Optionally, in the embodiment of the present invention, the optical waveguide device may be either a 1*N WSS or an optical switching matrix (or optical switch array) device, and the corresponding structure may be as follows:

As shown in FIG. 9(a), the optical waveguide unit 1 is a first optical waveguide unit 1 and a second optical waveguide unit 1, and the functional unit 2 includes at least one fourth functional unit 2 and at least one fifth functional unit 2; The functional unit 2 comprises a ninth interface point 29 and at least one tenth interface point 210; the fifth functional unit 2 comprises at least one eleventh interface point 211 and at least one twelfth interface point 212; the fourth functional unit 2 is for An optical signal from the ninth interface point 29 is separated according to a frequency component and sent to a plurality of tenth interface points 210 for output; or, for at least one path from the at least one tenth interface point 210, containing different frequency components The optical signal is combined into one optical signal and sent to the ninth interface point 29; the fifth functional unit 2 is used for transmitting the optical signal; the ninth interface point 29 is connected to the first optical waveguide unit 1, and the tenth interface point 210 and the second optical waveguide The first interface point 211 is connected to the first optical waveguide unit 1, and the twelfth interface point 212 is connected to the second optical waveguide unit 1. The first optical waveguide unit 1 is connected to an interface point corresponding to the optical fiber or the optical fiber. Second optical waveguide unit 1 An interface point corresponding to the optical fiber or the optical fiber; the first optical waveguide unit 1 is configured to connect the interface point corresponding to the optical fiber or the optical fiber to the ninth interface point 29 based on the configuration information, and form a ninth interface point 29 corresponding to the optical fiber or the optical fiber. The optical signal path between the interface points, the second optical waveguide unit 1 is configured to connect the interface point corresponding to the optical fiber or the optical fiber to the ninth interface point 29 based on the configuration information, and form an interface corresponding to the optical fiber or the optical fiber of the ninth interface point 29. An optical signal path between the points, and a fourteenth interface point 214 connecting the different fourth functional units 2, forming an optical signal path between the fourteenth interface points 214 of the different fourth functional units 2; or, the first light The waveguide unit 1 is configured to connect the eleventh interface point 211 to the interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and form an optical signal path between the eleventh interface point 211 and the interface point corresponding to the optical fiber or the optical fiber, and second The optical waveguide unit 1 is configured to connect the twelfth interface point 212 with an interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and form a twelfth interface point 212 between the interface point corresponding to the optical fiber or the optical fiber. signal path.

In the implementation, the optical waveguide unit 1 is the first optical waveguide unit 1 and the second optical waveguide unit 1, and both the first optical waveguide unit 1 and the second optical waveguide unit 1 can be realized by the first variable optical waveguide. The functional unit 2 may comprise at least one fourth functional unit 2 and at least one fifth functional unit 2, the functions of the fourth functional unit 2 and the fifth functional unit 2 being different, the fourth functional unit 2 for illuminating an optical signal according to the frequency The components are separated to obtain a multi-channel single-wave optical signal or a single optical signal, or a multi-channel single-wave optical signal is obtained to obtain a combined optical signal, or a plurality of single optical signals are synthesized to obtain a combined optical signal, and the fifth functional unit is obtained. 2 is only used to transmit optical signals.

The optical waveguide device is a 1*N WSS, and the fourth functional unit 2 includes a ninth interface point 29 and at least one tenth interface point 210, the ninth interface point 29 is a composite optical signal interface point, and the tenth interface point 210 is a single The optical signal interface point, or the ninth interface point 29 is a multiplexed optical signal interface point, and the tenth interface point 210 is a single-wave optical signal interface point. The first optical waveguide unit 1 may generate or change an electric field, a magnetic field, a temperature, or the like based on the configuration information to control the optical material connecting optical fiber and the ninth interface point 29 to form an optical signal path between the optical fiber and the ninth interface point 29, or Generating or changing an electric field, a magnetic field, a temperature, etc. based on the configuration information to control an interface point corresponding to the optical material connecting fiber and the ninth interface point 29, forming an optical signal path between the interface point corresponding to the optical fiber and the ninth interface point 29, The fiber is the input fiber of the optical signal. The second optical waveguide unit 1 may generate or change an electric field, a magnetic field, a temperature, or the like based on the configuration information to control the optical material connecting optical fiber and the ninth interface point 29 to form an optical signal path between the optical fiber and the ninth interface point 29, or Generating or changing an electric field, a magnetic field, a temperature, etc. based on the configuration information to control an interface point corresponding to the optical material connecting fiber and the ninth interface point 29, forming an optical signal path between the interface point corresponding to the optical fiber and the ninth interface point 29, An optical fiber is an output fiber of an optical signal. When the optical signal is transmitted for the same time, the ninth interface point 29 to which the second optical waveguide unit 1 is connected and the ninth interface point 29 to which the first optical waveguide unit 1 is connected belong to different fourth functional units 2, respectively. The second optical waveguide unit 1 may also generate or change an electric field, a magnetic field, a temperature, or the like based on the configuration information to control the tenth interface point 210 of the optical material to be connected to the different fourth functional units 2 to form the tenth interface of the different fourth functional unit 2 Optical signal path between points 210.

Thus, for a 1*N WSS, the ninth interface point 29 is a composite optical signal interface point, and the tenth interface point 210 is a single optical signal interface point, when a combined optical signal passes through the ninth interface point 29 corresponding to the optical fiber or the optical fiber. When the optical signal path between the interface points is transmitted to the ninth interface point 29, the fourth functional unit 2 to which the ninth interface point 29 belongs can separate one combined optical signal according to the frequency component to obtain multiple single optical signals, respectively And sent to the tenth interface point 210 included in the fourth functional unit 2, the multiple optical signals may be based on the tenth interface point 210 and the other fourth functional unit of the fourth functional unit 2 established by the second optical waveguide unit 1 The optical signal path between the tenth interface points 210 of 2 is sent to the tenth interface point 210 of the other fourth functional unit 2, and the other fourth functional units 2 can respectively receive the multiple unique singles to their tenth interface point 210. The optical signals are synthesized to obtain a multi-channel synthesized optical signal, which is sent to its own ninth interface point 29, and is respectively sent to the optical fiber through the optical signal path between the ninth interface point 29 and the interface point corresponding to the optical fiber or the optical fiber for transmission. Here, the other fourth functional unit 2 refers to the functional unit 2 other than the fourth functional unit 2 that initially receives the optical signal. In addition, the ninth interface point 29 is a multiplexed optical signal interface point, and the tenth interface point 210 is a single-wave optical signal interface point, which is substantially the same as the above description of the optical waveguide device, as long as the "composited optical signal" in the above description is replaced with The "combined optical signal", "single optical signal" can be replaced by "single-wave optical signal", and the rest of the process is exactly the same.

The optical waveguide device is an optical switching matrix (or optical switch array) device, and the fifth functional unit 2 includes at least one eleventh interface point 211 and at least one twelfth interface point 212, an eleventh interface point 211 and a twelfth interface The point 212 may be a multiplexed optical signal interface point, or may be a single-wave optical signal interface point, or the eleventh interface point 211 and the twelfth interface point 212 may be a composite optical signal interface point or a single optical signal interface point. The first optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, and the like based on the configuration information to control the optical material connecting optical fiber and the eleventh interface point 211 to form an optical signal path between the optical fiber and the eleventh interface point 211. The optical fiber is an input optical fiber of the optical signal, and the second optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material connecting optical fiber and the twelfth interface point 212 to form an optical fiber and a twelfth interface. The optical signal path between points 212, which is the output fiber of the optical signal. For any of the fifth functional units 2, an optical signal is transmitted to the eleventh interface point 211 through the optical signal path between the interface points corresponding to the optical fiber or the optical fiber, and the fifth functional unit 2 to which the eleventh interface point 211 belongs The optical signal path between the twelfth interface point 212 and the interface point corresponding to the optical fiber or the optical fiber can be transmitted to the optical fiber for output.

Thus, since the connection between the optical fiber and the functional unit 2 is realized by the first optical waveguide unit 1 and the second optical waveguide unit 1, the configuration information can be adjusted to select or adjust the first of the functional units 2 of the optical fiber connection. The number and type of the four functional units 2 and the fifth functional unit 2.

It should be noted that the configuration information includes the exchange configuration information of the optical signal, so that the optical signal path between the eleventh interface point 211 and the optical fiber is generated based on the configuration information, and the optical signal is based on the generated optical signal path. Transmission, between the eleventh interface point 211 and the optical fiber, also realizes the optical signal exchange function. Based on the configuration information, an optical signal path between the ninth interface point 29 and the optical fiber is generated, and the optical signal is transmitted based on the generated optical signal path, and the optical signal exchange function is implemented between the ninth interface point 29 and the optical fiber. .

It should also be noted that when the fiber on the left side of FIG. 9(a) is the input fiber, the fiber on the right side is the output fiber, and the fiber on the left side is the output fiber, and the fiber on the right side is the input fiber.

In this way, the optical waveguide device can be used as a WSS or an optical switching matrix (or optical switch array) device, which is convenient to use.

Optionally, in the embodiment of the present invention, the optical waveguide device may also be configured as an optical switching matrix (or optical switch array) device, and the corresponding structure may be as follows:

As shown in FIG. 9(b), the functional unit 2 includes at least one thirteenth interface point 213 and at least one fourteenth interface point 214; the optical waveguide unit 1 is configured to connect the thirteenth interface point 213 with the configuration information. An optical fiber or an optical fiber corresponding to an interface point, forming an optical signal path between the thirteenth interface point 213 and an interface point corresponding to the optical fiber or the optical fiber, and an interface point connecting the fourteenth interface point 214 to the optical fiber or the optical fiber to form a tenth The optical signal path between the four interface points 214 and the interface points corresponding to the optical fibers or optical fibers.

In implementations, the optical waveguide device can be configured as an optical switching matrix (or optical switch array) device. The role of the optical switching matrix (or optical switch array) device is to enable optical signals to be input from any input fiber to be exchanged to any output fiber.

The number of functional units 2 is one, and the functional unit 2 includes at least one thirteenth interface point 213 and at least one fourteenth interface point 214. The configuration information includes switching matrix information and the like, and the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material to connect the thirteenth interface point 213 and the optical fiber to form the thirteenth interface point 213 and the optical fiber. Between the optical signal path, or the optical waveguide unit 1 can generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material to connect the thirteenth interface point 213 and the interface point corresponding to the optical fiber to form a thirteenth interface. Point 213 is an optical signal path between interface points corresponding to the fiber. And the electric material, the magnetic field, the temperature, etc. may be generated or changed based on the configuration information to control the optical material to connect the fourteenth interface point 214 and the optical fiber to form an optical signal path between the fourteenth interface point 214 and the optical fiber, or the optical waveguide unit 1 may generate or change an electric field, a magnetic field, a temperature, etc. based on the configuration information to control the optical material to connect the fourteenth interface point 214 with the interface point corresponding to the optical fiber to form a light between the fourteenth interface point 214 and the interface point corresponding to the optical fiber. signal path.

When any one of the optical signals is transmitted through the optical signal between the optical fiber and the thirteenth interface point 213 to the thirteenth interface point 213, the functional unit 2 may set the thirteenth interface point 213 based on the preset optical switching matrix. The received optical signal is sent to the fourteenth interface point 214. This optical signal can be transmitted to the optical fiber based on the optical signal path between the fourteenth interface point 214 and the optical fiber. In this way, optical signals are exchanged from the input fiber to any output fiber.

Thus, in the implementation of the optical switching matrix (or optical switch array) device, the optical device in the space optics is not used, and the vibration requirement is not high, and the implementation difficulty of the optical switching matrix (or optical switch array) device can be reduced.

Optionally, as shown in FIG. 10, in the embodiment of the present invention, a method for fabricating the optical waveguide device in the foregoing embodiment is further provided, and the corresponding processing steps may be as follows:

In step 1, a silicon dioxide or silicon waveguide is formed on a silicon wafer to form a functional unit 2.

Step 2, as shown in FIG. 11, etching a through-groove on the silicon wafer, the through-groove penetrating in at least one direction, the bottom of the groove is made of an electrode, and the orientation material is coated on the bottom of the groove (the through-groove is taken for subsequent pouring) For optical materials, evenly poured). Alternatively, one through groove may be etched on each side.

Step 3, coating an alignment material on the glass substrate, and the glass substrate may be Indium Tin Oxide (ITO).

In step 4, the side of the glass substrate coated with the alignment material is bonded to the side on which the through-groove is etched.

In step 5, the ends of the through-groove are sealed with a glue to obtain a sealing area where the optical material can be placed.

In step 6, the sealing region is evacuated, and an optical material such as liquid crystal or the like is poured into the sealing region to obtain the optical waveguide unit 1, wherein the optical waveguide unit 1 is a sealing region of the dielectric material on which the variable optical waveguide is placed.

It should be noted that if the optical material is a liquid crystal, the liquid crystal can be poured into the sealing region by utilizing the capillary phenomenon and the pressure difference of the liquid crystal.

It should be noted that, in FIG. 11, the functional unit 2 is implemented by a fixed waveguide, and the optical waveguide unit 1 is implemented by a variable waveguide. In order to reduce the loss of connection between the functional unit 2 and the optical waveguide unit 1, the functional unit and the optical waveguide are used. At the contact position of the unit, the refractive index of the fixed optical waveguide in the functional unit 2 and the refractive index of the variable optical waveguide in the optical waveguide unit 1 are similar or equal, and the similarity can be understood as the refractive index of the fixed optical waveguide in the functional unit 2. The absolute value of the difference between the refractive indices of the variable optical waveguides in the optical waveguide unit 1 is smaller than a preset value, so that the light at the interface point of the optical waveguide unit 1 and the functional unit 2 due to the large difference in refractive index between the two can be reduced. The reflection of the signal, thereby reducing the insertion loss at the interface point.

In the embodiment of the present invention, as shown in FIG. 12, the WSS may be used to implement a Reconfigurable Optical Add-Drop Multiplexer (ROADM), and the ROADM may include 1*N WSS and M*N. WSS, S*T WSS and N*1 WSS, where 1*N WSS, N*1 WSS and M*N WSS can be used to connect to the line fiber, and the line fiber is connected to the optical transport network. The optical fiber of the node device in the S*T is connected to the W* of the 1*N and the WSS of the N*1 through the internal optical fiber of the ROADM, and the WSS of the S*T can be connected to the receiver and the transmitter. In this way, since the technology of space optics is not used when implementing WSS, the obtained ROADM is less affected by vibration, and it is not necessary to seal the air, thereby reducing the cost.

It should be noted that the above-mentioned 1*N WSS, N*1 WSS, and M*N WSS are all connected line fibers, so they may be referred to as line side WSS.

It should be noted that the broken lines in FIGS. 2 to 11 described above indicate the transmission paths of the optical signals in the optical waveguide unit 1.

In the embodiment of the present invention, the optical waveguide device includes an optical waveguide unit and a functional unit. The optical waveguide unit is implemented by a first variable optical waveguide, and the functional unit is implemented by a fixed optical waveguide or a second variable optical waveguide, and the fixed optical waveguide is preset. The optical waveguide whose optical signal path cannot be changed, the first variable optical waveguide and the second variable optical waveguide are components for controlling the optical material to form an optical signal path or eliminating the optical signal path to implement a corresponding optical processing function based on the configuration information, wherein: The optical waveguide unit is connected to the functional unit, and the functional unit is configured to implement a first optical processing function of the optical signal, and the optical waveguide unit is configured to implement a second optical processing function of the optical signal based on the configuration information. In this way, since the optical waveguide device is not implemented by the spatial optical technology, the vibration requirement is not high, and thus the equipment of the transmission node can be reduced in difficulty, and the entire optical waveguide device does not need to be sealed to the air, and the optical waveguide is reduced. The cost of the device.

In another embodiment of the present invention, it is also provided that the optical processing function of the optical waveguide device can be arbitrarily changed or the performance corresponding to the optical processing function of the optical waveguide device can be changed. The structure of the corresponding optical waveguide device can be as follows:

As shown in FIG. 13, the optical waveguide device includes a configuration unit 3 and an optical waveguide unit 1, the optical waveguide unit 1 is realized by a first variable optical waveguide, the configuration unit 3 is electrically connected to the optical waveguide unit 3, and the configuration unit 3 is used for light. The waveguide unit 1 transmits configuration information including information of devices in the network node, information of the optical signal transmission path, output voltage of each electrode of the variable optical waveguide, magnetic field information of the variable optical waveguide, and temperature of the variable optical waveguide Any one or more of the information; the optical waveguide unit 1 is configured to change the performance corresponding to the light processing function or the light processing function of the optical waveguide device according to the configuration information.

In an implementation, the optical waveguide device comprises a configuration unit 3 and an optical waveguide unit 1, which can be realized by a first variable optical waveguide, the configuration unit 3 being electrically connected to the optical waveguide unit 1.

The technician can store the configuration information in the configuration unit 3, and the configuration unit 3 can transmit the configuration information to the optical waveguide unit 1. The configuration information can include information of the network node device, information of the transmission path of the optical signal, and each of the variable optical waveguides. The optical waveguide unit 1 can receive the configuration information transmitted by the configuration unit 3, and the optical waveguide unit 1 can be based on any one or more of the output voltage of the electrodes, the magnetic field information of the variable optical waveguide, and the temperature information of the variable optical waveguide. The received configuration information is used to change the performance of the light processing function or the light processing function, and changing the light processing function of the optical waveguide device includes changing from one or more of the following functions to another or another combination : optical signal path function, optical signal exchange function, power signal based power splitting, optical signal power based combining, optical signal spot changing function, optical signal dispersion function, optical signal based on central wavelength combining function, optical signal Based on the central wavelength splitting function, optical signal transmission delay function, and optical signal filtering function, the above-mentioned light processing function is in front Interpreted not be repeated here. For example, the optical waveguide device originally implements an optical signal dispersion function and an optical signal exchange function (for example, implements a WSS function), and the technician resets the configuration information, and based on the new configuration information, can implement an optical signal exchange function, etc. (for example, implementing an optical switching matrix). Or optical switch array function).

Optionally, the information about the network node device mentioned above may include a light processing function corresponding to a slot of the device to which the optical waveguide device is installed, where the slot of the device may be a slot of the optical backplane, that is, the optical waveguide device is installed at After the slot is located, the optical processing function to be implemented, for example, the information of the network node device is what type of WSS is installed in the device slot, and the electric field, magnetic field or temperature corresponding to the optical waveguide unit 1 of the corresponding type of WSS is implemented. In this way, the optical waveguide unit 1 can determine the output voltage of each electrode of the variable optical waveguide according to the light processing function corresponding to the slot of the device to which the optical waveguide device is mounted (specifically, each electrode corresponding to the light processing function) Corresponding relationship of output voltages, determining the output voltage of each electrode of the variable optical waveguide), and then adding a corresponding voltage to each electrode according to the determined output voltage of each electrode, so that the optical waveguide device can be changed Light processing function. Here, only the electric field is taken as an example, and other cases are similar, and will not be described again here. In addition, the output voltage of the electrode of the variable optical waveguide in which the voltage needs to be changed may be determined according to the light processing function corresponding to the device slot to which the optical waveguide device is mounted, and the current output voltage of each electrode, such that the optical waveguide Unit 1 can directly add an output voltage to the corresponding electrode according to the determined output voltage, and the other electrodes do not change the output voltage.

Optionally, the configuration information is information of the optical signal transmission path, and the information of the optical signal transmission path includes: loss requirement information and/or downlink information of the optical signal transmission, and the downlink information is used to indicate whether the optical signal is located at the optical waveguide device. The network node is offline; the optical waveguide unit is configured to determine an output voltage of each electrode of the variable optical waveguide according to the loss requirement information and/or the downlink information of the optical signal transmission, according to the determined output voltage of each electrode, Each of the electrodes of the variable optical waveguide is controlled to output a corresponding output voltage.

In an implementation, the optical waveguide unit 1 can determine the output voltage of each electrode of the variable optical waveguide according to the loss requirement information and/or the downlink information of the optical signal transmission (specifically, the loss requirement information according to the stored optical signal transmission) And/or the correspondence relationship between the downlink information and the output voltage of each electrode of the variable optical waveguide, determining the output voltage of each electrode of the variable optical waveguide), and then according to the determined output voltage of each electrode, for each The electrodes are applied with corresponding voltages, that is, the performance corresponding to the light processing function of the optical waveguide device can be changed. In addition, the output voltage of the electrode of the variable optical waveguide in which the voltage needs to be changed may be determined according to the loss requirement information and/or the downlink information of the optical signal transmission and the current output voltage of each electrode, such that the optical waveguide unit 1 The output voltage can be applied to the corresponding electrode directly according to the determined output voltage, and the other electrodes do not change the output voltage.

In addition, the information of the optical signal transmission path may further include one or more of the following: a source node of the optical signal transmission, a destination node of the optical signal transmission, a node through which the optical signal is transmitted, loss requirement information of the optical signal transmission, and an optical signal Road information, optical signal on-road information, downlink information is used to indicate whether the optical signal is off the network node where the optical waveguide device is located, and the downlink information is to be sent to the receiver, no longer transmitting, and the uplink information is used for only the optical signal. On the network node where the optical waveguide device is located, the upper road finger is sent from the transmitter to the network. For example, the optical waveguide device can select whether the optical waveguide device implements the WSS function or implements the optical switching matrix (or the function of the optical switch array) according to the loss requirement information and the downlink information of the optical signal transmission, or implements a combination of the WSS and the optical switching matrix. Function, or the ratio of the number of WSS and optical switching matrix connected fibers when adjusting the combined function of WSS and optical switching matrix, and so on. Since the loss of the optical switching matrix is smaller than that of the WSS, the optical switching matrix can be used for optical signal exchange according to the downlink or uplink information of the optical signal, thereby reducing the insertion loss of the optical signal transmission in the network, which is advantageous for extending Optical signal transmission distance reduces network cost.

Optionally, the configuration information transmitted by the configuration unit 3 to the optical waveguide unit 1 may be an output voltage of each electrode of the variable optical waveguide, such that the optical waveguide unit 1 can directly according to the output voltage of each of the received electrodes. Each electrode is applied with a corresponding voltage so that the performance of the light processing function or the light processing function of the optical waveguide device can be changed. In this case, the configuration unit 3 can calculate the output voltage of each electrode based on the information of the network node device or the information of the optical signal transmission path.

In addition, the configuration information transmitted by the configuration unit 3 to the optical waveguide unit 1 may be an output voltage of an electrode of the variable optical waveguide in which an electrode needs to be changed in voltage. Thus, the optical waveguide unit 1 can directly add an output voltage to the corresponding electrode according to the received output voltage, and the other electrodes do not change the output voltage. In this case, the configuration unit 3 can calculate the output voltage of the electrode of the variable optical waveguide in which the voltage needs to be changed, based on the information of the network node device or the information of the optical signal transmission path.

Optionally, the optical waveguide device may further include a functional unit 2. The functional unit 2 is implemented by a fixed optical waveguide or a second variable optical waveguide. The fixed optical waveguide is an optical waveguide whose preset optical signal path cannot be changed. The optical waveguide and the second variable optical waveguide are optical waveguides that control the optical material to form an optical signal path or eliminate the optical signal path to implement a corresponding optical processing function based on the configuration information of the configuration unit 3, wherein the optical waveguide unit 1 and the functional unit 2 a functional unit 2 for implementing a first optical processing function of the optical signal; an optical waveguide unit 1 for implementing a second optical processing function of the optical signal based on the configuration information; a first optical processing function and a second optical processing function The completed functions are different or the performance achieved is different.

Alternatively, the optical waveguide device may also be any of the optical waveguide devices of the foregoing embodiments.

In this way, the technician can control the configuration information of the configuration unit 3, so that the same optical waveguide device can flexibly implement various optical processing functions or achieve different performances; in addition, according to the network service configuration information such as the optical signal transmission path, according to the network. In different situations of the service configuration, the performance corresponding to the optical processing function or the optical processing function implemented by the optical waveguide device is selected, and the networking cost of the network is reduced.

Optionally, the configuration information is information about the device in the network node, the information of the device in the network node includes a light processing function corresponding to the slot of the device to which the optical waveguide device is installed, and the optical waveguide unit is configured to be installed according to the optical waveguide device. The light processing function corresponding to the slot determines the magnetic field information or temperature information of the variable optical waveguide, and controls the variable optical waveguide according to the magnetic field information or the temperature information of the variable optical waveguide.

In the solution shown in the embodiment of the present invention, the optical waveguide unit can determine the magnetic field information or temperature information of the variable optical waveguide according to the optical processing function corresponding to the slot of the device installed in the optical waveguide device. The variable optical waveguide can be controlled subsequently based on the magnetic field information or temperature information of the variable optical waveguide.

Optionally, the configuration information is information of the optical signal transmission path, and the information of the optical signal transmission path includes: loss requirement information and/or downlink information of the optical signal transmission, and the downlink information is used to indicate whether the optical signal is located at the optical waveguide device. The network node is offline; the optical waveguide unit is configured to determine magnetic field information or temperature information of the variable optical waveguide according to the loss requirement information and/or the downlink information of the optical signal transmission, according to the magnetic field information or temperature information of the variable optical waveguide, Control the variable optical waveguide.

In the embodiment of the present invention, the optical waveguide device includes a configuration unit 3 and an optical waveguide unit 1. The optical waveguide unit 1 is realized by a first variable optical waveguide, the configuration unit 3 is electrically connected to the optical waveguide unit 1, and the configuration unit 3 is used for light. The waveguide unit 1 transmits configuration information including information of a device in the network node or information of an optical signal transmission path, and the optical waveguide unit 1 is configured to change the performance of the optical processing function or the optical processing function of the optical waveguide device according to the configuration information. .

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof, and when implemented using software, may be implemented in whole or in part in the form of a computer program product. The computer program product comprises one or more computer instructions which, when loaded and executed on a device or processor, produce, in whole or in part, a process or function according to an embodiment of the invention. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line) or wireless (eg infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be accessed by a base station or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape, etc.), or an optical medium (such as a digital video disk (DVD), etc.), or a semiconductor medium (such as a solid state hard disk or the like).

The above description is only one embodiment of the present application, and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are included in the scope of protection of the present application. within.

Claims

An optical waveguide device, characterized in that the optical waveguide device comprises an optical waveguide unit and a functional unit, the optical waveguide unit being realized by a first variable optical waveguide, the functional unit being fixed by an optical waveguide or a second variable Implemented by an optical waveguide, the fixed optical waveguide is an optical waveguide whose preset optical signal path cannot be modified, and the first variable optical waveguide and the second variable optical waveguide are used to control an optical material to form an optical signal path based on configuration information. Or an optical waveguide that eliminates the optical signal path to achieve a corresponding light processing function, wherein:

The optical waveguide unit is connected to the functional unit;

The functional unit is configured to implement a first light processing function of the optical signal;

The optical waveguide unit is configured to implement a second light processing function of the optical signal based on the configuration information.
The optical waveguide device according to claim 1, wherein the first light processing function and the second light processing function respectively comprise any one or more of the following: an optical signal path function, an optical signal exchange function, Spot change function of optical signal, optical signal based on power split function, optical signal based on power combining function, optical signal dispersion function, optical signal based on central wavelength combining function, optical signal based on central wavelength splitting function, optical signal transmission delay Time function, optical signal filtering function.
The optical waveguide device according to claim 1 or 2, wherein said second variable optical waveguide is smoother than said first variable optical waveguide, or said second variable optical waveguide The unit length loss is lower than the first variable optical waveguide.
The optical waveguide device according to any one of claims 1 to 3, wherein the first light processing function is an optical signal dispersion function, and the optical signal dispersion function is: separating one optical signal according to a frequency component, Or combine multiple optical signals containing different frequency components into one optical signal.
The optical waveguide device according to claim 4, wherein said functional unit comprises at least one first functional unit and at least one second functional unit, said first functional unit for performing an optical signal according to a frequency component Separating, the second functional unit is configured to synthesize multiple optical signals including different frequency components into one optical signal, the first functional unit includes a first interface point and a plurality of second interface points, and the second function The unit includes a plurality of third interface points and a fourth interface point;

The first interface point and the fourth interface point are connected to an interface point corresponding to the optical fiber or the optical fiber;

The optical waveguide unit is configured to connect the second interface point and the third interface point based on the configuration information to form an optical signal path between the second interface point and the third interface point.
The optical waveguide device according to claim 5, wherein the functional unit comprises a first functional unit and a plurality of second functional units, and the first interface point and the fourth interface point are combined optical signals An interface point or a composite optical signal interface point, where the second interface point and the third interface point are single-wave optical signal interface points or single optical signal interface points.
The optical waveguide device according to claim 5, wherein the functional unit comprises a plurality of first functional units and a second functional unit, and the first interface point and the fourth interface point are combined optical signals An interface point or a composite optical signal interface point, where the second interface point and the third interface point are single-wave optical signal interface points or single optical signal interface points.
The optical waveguide device according to claim 4, wherein said functional unit comprises at least one third functional unit for separating one optical signal according to a frequency component, or for Multiple optical signals including different frequency components are combined to form one optical signal, and the third functional unit includes a fifth interface point and a plurality of sixth interface points;

The fifth interface point is connected to an interface point corresponding to the optical fiber or the optical fiber;

The optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber;

The optical waveguide unit is configured to connect the sixth interface point and the optical fiber based on the configuration information, form an optical signal path between the sixth interface point and the optical fiber, or connect the sixth interface point to the optical fiber. The interface point forms an optical signal path between the sixth interface point and an interface point corresponding to the optical fiber.
The optical waveguide device according to claim 8, wherein the fifth interface point is a combined optical signal interface point or a composite optical signal interface point, and the sixth interface point is a single-wave optical signal interface point or a single optical signal. Interface point.
The optical waveguide device according to claim 4, wherein the number of the functional units is greater than or equal to 2, and the functional unit comprises a seventh interface point and a plurality of eighth interface points;

The optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber;

The function unit is configured to, when receiving an optical signal through the seventh interface point, separate the received optical signal into multiple optical signals according to frequency components, and output through the eighth interface point, when passing When the eighth interface points respectively receive the optical signals including the different frequency components, the received optical signals containing the different frequency components are combined into one optical signal, and output through the seventh interface point;

The optical waveguide unit is configured to connect an eighth interface point of different functional units based on the configuration information, form an optical signal path between the eighth interface points of the different functional units, and connect the seventh interface point with the optical fiber or the optical fiber a corresponding interface point, forming an optical signal path between the seventh interface point and an interface point corresponding to the optical fiber or the optical fiber; or, for connecting, according to the configuration information, the interface point corresponding to the optical fiber or the optical fiber by the seventh interface point Forming an optical signal path between the seventh interface point and an interface point corresponding to the optical fiber or the optical fiber, and an interface point connecting the eighth interface point to the optical fiber or the optical fiber to form the eighth interface point and the optical fiber or Optical signal path between interface points corresponding to the fiber.
The optical waveguide device according to claim 10, wherein the seventh interface point is a combined optical signal interface point or a composite optical signal interface point, and the eighth interface point is a single-wave optical signal interface point or a single optical signal. Interface point.
The optical waveguide device according to any one of claims 1 to 3, wherein said optical waveguide unit comprises a first optical waveguide unit and a second optical waveguide unit, said functional unit comprising at least one fourth functional unit and at least a fifth functional unit; the fourth functional unit is configured to separate one optical signal according to a frequency component, or to combine multiple optical signals including different frequency components into one optical signal; Transmitting an optical signal; the fourth functional unit includes a ninth interface point and at least one tenth interface point; the ninth interface point is connected to the first optical waveguide unit, the tenth interface point is a second optical waveguide unit connected; the fifth functional unit includes at least one eleventh interface point and at least one twelfth interface point, the eleventh interface point being connected to the first optical waveguide unit, the a twelve interface point is connected to the second optical waveguide unit;

The first optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber, and the second optical waveguide unit is connected to an interface point corresponding to the optical fiber or the optical fiber;

The first optical waveguide unit is configured to connect an interface point corresponding to the optical fiber or the optical fiber to the interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and form an optical signal between the ninth interface point and an interface point corresponding to the optical fiber or the optical fiber. The second optical waveguide unit is configured to connect an interface point corresponding to the optical fiber or the optical fiber to the interface point corresponding to the optical fiber or the optical fiber based on the configuration information, and form an interface point between the ninth interface point and the optical fiber or the optical fiber. An optical signal path, and a tenth interface point connecting different fourth functional units based on the configuration information, forming an optical signal path between the tenth interface points of the different fourth functional units; or the first optical waveguide unit And connecting, according to the configuration information, an interface point corresponding to the optical fiber or the optical fiber by the eleventh interface point, forming an optical signal path between the eleventh interface point and an interface point corresponding to the optical fiber or the optical fiber, where the a second optical waveguide unit, configured to connect an interface point corresponding to the optical fiber or the optical fiber to the twelfth interface point based on the configuration information, to form a connection corresponding to the optical fiber or the optical fiber Optical signal path between the dots.
The optical waveguide device according to claim 12, wherein the ninth interface point is a combined optical signal interface point or a composite optical signal interface point, and the tenth interface point is a single-wave optical signal interface point or a single optical signal. Interface point.
The optical waveguide device according to claim 1, wherein said functional unit comprises at least one thirteenth interface point and at least one fourteenth interface point;

The optical waveguide unit is configured to connect, according to the configuration information, an interface point corresponding to the optical fiber or the optical fiber to the thirteenth interface point, and form an interface point between the thirteenth interface point and an optical fiber or an optical fiber. An optical signal path, and an interface point connecting the fourteenth interface point to the optical fiber or the optical fiber, forming an optical signal path between the fourteenth interface point and an interface point corresponding to the optical fiber or the optical fiber.
The optical waveguide device according to any one of claims 1 to 3, wherein the functional unit is etched on a silicon wafer, the silicon wafer is provided with a through-groove, and the optical waveguide unit is disposed in the through-groove in.
The optical waveguide device according to claim 1, wherein said configuration information includes an output voltage of each electrode of said first variable optical waveguide, magnetic field information of said first variable optical waveguide, said Any one of the temperature information of the first variable optical waveguide.
The optical waveguide device according to claim 1, wherein a refractive index of said functional unit is equal to or different from a refractive index of said optical waveguide unit at a contact position of said functional unit with said optical waveguide unit The absolute value of the value is less than the preset value.
An optical waveguide device, characterized in that the optical waveguide device comprises a configuration unit and an optical waveguide unit, the optical waveguide unit being realized by a variable optical waveguide that controls optics based on configuration information provided by the configuration unit The material forms an optical signal path or an optical waveguide that eliminates the optical signal path to achieve a corresponding light processing function; wherein:

The configuration unit is electrically connected to the optical waveguide unit;

The configuration unit is configured to send configuration information to the optical waveguide unit, where the configuration information includes information of a device in a network node, information of an optical signal transmission path, an output voltage of each electrode of the variable optical waveguide, Any one or more of magnetic field information of the variable optical waveguide and temperature information of the variable optical waveguide;

The optical waveguide unit is configured to change a performance corresponding to a light processing function or a light processing function of the optical waveguide device according to the configuration information.
The optical waveguide device according to claim 18, wherein said changing the light processing function of said optical waveguide device comprises changing from a combination of one or more of the following functions to another or another combination : optical signal path function, optical signal exchange function, power signal based power splitting, optical signal power based combining, optical signal spot changing function, optical signal dispersion function, optical signal based on central wavelength combining function, optical signal Based on central wavelength splitting function, optical signal transmission delay function, optical signal filtering function.
The optical waveguide device according to claim 18 or 19, wherein the configuration information is information of devices in the network node, and information of devices in the network node includes device slots to which the optical waveguide device is mounted Bit corresponding light processing function;

The optical waveguide unit is configured to determine an output voltage of each electrode of the variable optical waveguide according to a light processing function corresponding to a device slot to which the optical waveguide device is mounted, and control each of the variable optical waveguides The electrodes output corresponding output voltages.
The optical waveguide device according to claim 18 or 19, wherein the configuration information is information of devices in the network node, and information of devices in the network node includes device slots to which the optical waveguide device is mounted Bit corresponding light processing function;

The optical waveguide unit is configured to determine magnetic field information or temperature information of the variable optical waveguide according to a light processing function corresponding to a slot of the device to which the optical waveguide device is mounted, according to magnetic field information of the variable optical waveguide Or temperature information to control the variable optical waveguide.
The optical waveguide device according to claim 18 or 19, wherein the configuration information is information of the optical signal transmission path, and the information of the optical signal transmission path includes: loss requirement information of the optical signal transmission and/or Or the downlink information, the downlink information is used to indicate whether the optical signal is off the network node where the optical waveguide device is located;

The optical waveguide unit is configured to determine an output voltage of each electrode of the variable optical waveguide according to loss requirement information and/or downlink information of the optical signal transmission, and control according to the determined output voltage of each electrode Each electrode of the variable optical waveguide outputs a corresponding output voltage.
The optical waveguide device according to claim 18 or 19, wherein the configuration information is information of the optical signal transmission path, and the information of the optical signal transmission path includes: loss requirement information of the optical signal transmission and/or Or the downlink information, the downlink information is used to indicate whether the optical signal is off the network node where the optical waveguide device is located;

The optical waveguide unit is configured to determine magnetic field information or temperature information of the variable optical waveguide according to loss requirement information and/or downlink information of the optical signal transmission, according to magnetic field information or temperature information of the variable optical waveguide Controlling the variable optical waveguide.