WO2023125931A1 - Wavelength tuning apparatus and method, optical module and communication device - Google Patents

Abstract

Provided in the present application are a wavelength tuning apparatus and method, an optical module and a communication device. The wavelength tuning apparatus is applied to an optical module, and the apparatus comprises one or more of the following units: a control unit, an optical transmission unit, a first filtering unit, a second filtering unit, an optical detection unit, a light splitting unit, an optical power monitoring unit and an optical fiber adaptation unit. The optical transmission unit is used for sending a first optical signal to the first filtering unit, the first filtering unit is used for processing the first optical signal, and the light splitting unit is used for splitting the first optical signal processed by the first filtering unit to obtain a second optical signal and a third optical signal; and/or the optical fiber adaptation unit receives a fourth optical signal sent by an optical transmission unit of an opposite-end optical module, and the light splitting unit is used for splitting the fourth optical signal to obtain a fifth optical signal and a sixth optical signal.

Description

Wavelength tuning device, method, optical module and communication equipment

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202111669669.6 and a filing date of December 31, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The embodiments of the present application relate to the technical field of optical fiber communication, and in particular to a wavelength tuning device, method, optical module, and communication equipment.

Background technique

The fifth-generation mobile communication technology (5G) backhaul access layer has deployed 50G optical modules on a large scale, mainly using three solutions:

1) Dual-fiber bidirectional optical module solution: the uplink and downlink use the same type of 50G optical module with the same wavelength range. Each optical module has two optical interfaces, one sending and one receiving, and the optical interfaces of the optical modules at both ends are connected by optical fibers, as shown in Figure 1.

2) Dual-wavelength single-fiber bidirectional optical module solution: two types of 50G optical modules are used for the uplink and downlink, and the wavelength ranges of the two types of optical modules are different. The filters inside the optical module realize the multiplexing and demultiplexing of the uplink and downlink wavelengths. Each optical module has only one optical interface, and the optical interfaces of the optical modules at both ends are connected through optical fibers, as shown in FIG. 2 .

3) Near-wavelength single-fiber bidirectional optical module solution: One type of 50G optical module is used for uplink and downlink, and the wavelengths of the optical modules at both ends are similar. Module 1 and Module 2 use the same type of 1310nm sparse wavelength division multiplexing (CWDM) band laser, whose wavelength is tuned within a certain range by TEC. And the filter models of the two modules are exactly the same, the filter integrates a heater (Heater), and its wavelength is tuned and controlled by the Heater. The module has two working modes (modes) A and B, which mode the module is in when working is determined by the auto-negotiation mechanism. Each optical module has only one optical interface, and the optical interfaces of the optical modules at both ends are connected through optical fibers, as shown in Figure 3.

At present, how the optical module automatically tunes the wavelength of the transmitted optical signal or received optical signal is a problem that needs to be solved urgently.

Contents of the invention

In order to solve related technical problems, embodiments of the present application provide a wavelength tuning device, method, optical module, and communication equipment.

In the first aspect, a wavelength tuning device is applied to an optical module, and the device includes one or more of the following units: a control unit, an optical sending unit, a first filtering unit, a second filtering unit, an optical detection unit, and a spectroscopic unit, optical power monitoring unit and fiber adapter unit, where,

The optical sending unit is configured to send a first optical signal to the first filtering unit, the first filtering unit is configured to process the first optical signal, and the optical splitting unit is configured to process the first optical signal passing through the first optical signal. performing light splitting on the first optical signal processed by the filtering unit to obtain a second optical signal and a third optical signal;

and / or,

The optical fiber adapter unit receives the fourth optical signal sent by the optical sending unit of the peer optical module, and the optical splitting unit is configured to split the fourth optical signal to obtain a fifth optical signal and a sixth optical signal.

In the above solution, the second optical signal enters the optical power monitoring unit, and the third optical signal enters the optical fiber adaptation unit; the optical power monitoring unit is used to measure the optical power of the second optical signal detection to obtain a first optical power value, the optical power monitoring unit is further configured to send the first optical power value to the control unit, and the control unit is configured to adjust the optical power value according to the first optical power value the emission wavelength of the optical sending unit, and/or adjust the passband frequency range of the first filtering unit.

In the above solution, the fifth optical signal enters the optical power monitoring unit, the sixth optical signal enters the first filter unit, and the optical power monitoring unit is used to perform optical power monitoring on the fifth optical signal. Detect to obtain a second optical power value, and send the second optical power value to the control unit, the first filtering unit is used to process the sixth optical signal, and pass through the first filtering unit The processed sixth optical signal enters the second filtering unit, the second filtering unit is used to process the sixth optical signal, and the sixth optical signal processed by the second filtering unit enters the optical a detection unit, the optical detection unit is used to detect the received optical power, obtain a third optical power value, and send the third optical power value to the control unit, and the control unit according to the third optical power value and/or the second optical power value, adjust at least one of the following:

The passband frequency range of the first filtering unit;

The passband frequency range of the second filtering unit;

Indicates the emission wavelength of the optical sending unit of the peer optical module.

In the above solution, if the first optical power value is lower than the first threshold, the control unit is further configured to adjust the passband frequency range of the first filtering unit or the emission wavelength of the optical sending unit until the specified The first optical power value reaches the first threshold;

and / or,

If the second optical power value is lower than the second threshold, the control unit is further configured to adjust the passband frequency range of the second filter unit or the emission wavelength of the optical transmission unit of the peer optical module until the The second optical power value reaches the second threshold.

In the above scheme, the device also includes:

The optical alignment unit is configured to adjust the angle of the sixth optical signal processed by the first filtering unit, and the angle-adjusted sixth optical signal enters the second filtering unit.

In the above solution, if the first optical signal is not within the passband frequency range of the first filtering unit, the first filtering unit is further configured to receive first information from the control unit, and the first filtering unit The unit is further configured to adjust the passband frequency range according to the first information until the first optical signal is within the passband frequency range of the first filtering unit;

and / or,

The optical transmission unit is further configured to receive second information from the control unit, and the optical transmission unit is further configured to adjust the transmission wavelength of the optical transmission unit according to the second information until the first optical signal is at Within the passband frequency range of the first filtering unit.

In the above solution, the optical power monitoring unit includes: one or more photodetectors.

In the above scheme, if the sixth optical signal is not within the passband frequency range of the second filtering unit, the second filtering unit is further configured to receive third information from the control unit, and the second filtering unit It is further configured to adjust the passband frequency range of the second filtering unit according to the third information until the sixth optical signal is within the passband frequency range of the second filtering unit.

In the second aspect, a wavelength tuning method is provided, which is applied to an optical module, and the optical module includes one or more of the following units: a control unit, an optical sending unit, a first filtering unit, a second filtering unit, and an optical detection unit , a light splitting unit, an optical power monitoring unit and an optical fiber adaptation unit, the method comprising:

The optical sending unit sends a first optical signal to the first filtering unit, the first filtering unit processes the first optical signal, and the optical splitting unit processes the first optical signal processed by the first filtering unit splitting the first optical signal to obtain a second optical signal and a third optical signal;

and / or,

The optical fiber adapter unit receives the fourth optical signal sent by the optical sending unit of the peer optical module, and the optical splitting unit splits the fourth optical signal to obtain a fifth optical signal and a sixth optical signal.

In the above solution, the second optical signal enters the optical power monitoring unit, and the third optical signal enters the optical fiber adaptation unit; the optical power monitoring unit detects the optical power of the second optical signal, Obtaining a first optical power value, the optical power monitoring unit sends the first optical power value to the control unit, and the control unit adjusts the emission wavelength of the optical sending unit according to the first optical power value, And/or adjust the passband frequency range of the first filtering unit.

In the above solution, the fifth optical signal enters the optical power monitoring unit, the sixth optical signal enters the first filter unit, and the optical power monitoring unit performs optical power detection on the fifth optical signal, Obtain a second optical power value, and send the second optical power value to the control unit, the first filtering unit processes the sixth optical signal, and the sixth optical signal processed by the first filtering unit Six light signals enter the second filter unit, the second filter unit processes the sixth light signal, the sixth light signal processed by the second filter unit enters the light detection unit, and the light The detection unit detects the received optical power to obtain a third optical power value, and sends the third optical power value to the control unit, and the control unit , adjust at least one of the following:

The passband frequency range of the first filtering unit;

The passband frequency range of the second filtering unit;

Indicates the emission wavelength of the optical sending unit of the peer optical module.

In the above scheme, if the first optical power value is lower than the first threshold, the control unit adjusts the passband frequency range of the first filtering unit or the emission wavelength of the optical sending unit until the first the optical power value reaches the first threshold;

and / or,

If the second optical power value is lower than the second threshold, the control unit adjusts the passband frequency range of the second filter unit or the emission wavelength of the optical transmission unit of the peer optical module until the second optical power The power value reaches the second threshold.

In a third aspect, an optical module is provided, including the wavelength tuning device as described in the first aspect.

In a fourth aspect, a communication device is provided, including the optical module as described in the second aspect.

In the embodiment of the present application, the control unit may control the emission wavelength of the optical sending unit and/or control the passband frequency range of the first filtering unit according to the first optical power value, and/or, the control unit According to the third optical power value and/or the second optical power value, at least one of the following: the passband frequency range of the first filter unit; the passband frequency range of the second filter unit; the opposite end optical The emission wavelength of the optical transmission unit of the module realizes automatic negotiation and tuning of the wavelength of the transmitted optical signal and/or the wavelength of the received optical signal.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiment. The drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the application. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

FIG. 1 is a schematic diagram of a dual-fiber bidirectional optical module;

2 is a schematic diagram of a single-fiber bidirectional optical module;

3 is a schematic diagram of a short-wavelength single-fiber bidirectional optical module;

FIG. 4 is a schematic diagram of a wavelength tuning device provided in an embodiment of the present application;

FIG. 5 is a flowchart of a wavelength tuning method provided in an embodiment of the present application;

Fig. 6 is a schematic diagram of an optical module provided by an embodiment of the present application;

Fig. 7 is a schematic diagram of a communication device provided by an embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The term "comprising" and any variations thereof in the description and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device comprising a series of steps or units is not necessarily limited to the explicit instead of those steps or elements explicitly listed, other steps or elements not explicitly listed or inherent to the process, method, product or apparatus may be included. In addition, the use of "and/or" in the description and claims means at least one of the connected objects, such as A and/or B, means that there are three situations including A alone, B alone, and both A and B.

In the embodiments of the present application, words such as "exemplarily" or "for example" are used as examples, illustrations or descriptions. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application shall not be interpreted as being more preferred or more advantageous than other embodiments or design solutions. Rather, the use of words such as "exemplarily" or "for example" is intended to present related concepts in a concrete manner.

The dual-fiber bidirectional optical module solution uses the same type of 50G optical module for uplink and downlink, no need to distinguish between optical modules and ports, easy to deploy, and low cost of optical modules. However, there is asymmetry in the uplink and downlink delays, which need to be tested and compensated. A total of 2 core fibers are required for uplink and downlink.

The dual-wavelength single-fiber bidirectional optical module solution requires only one fiber for uplink and downlink, which saves fiber resources, but the cost of the optical module is slightly higher; the uplink and downlink wavelengths are different from the optical module, and the optical module and port need to be distinguished, and the deployment and operation and maintenance need to be distinguished; There is a frequency interval between the line wavelengths, and there is a certain delay asymmetry, but it is significantly better than the dual-fiber bidirectional solution.

The short-wavelength single-fiber bidirectional optical module solution has different uplink and downlink wavelengths, but the wavelength interval is small, which can be realized by adjusting the wavelength of the same type of optical module; uplink and downlink only need 1 core fiber, saving fiber resources; uplink and downlink are the same type of optical module, no need to distinguish optical modules and ports, reducing the cost of deployment and operation and maintenance; the interval between uplink and downlink wavelengths is small, the delay asymmetry is further reduced, and better supports ultra-high-precision time synchronization; automatic negotiation and tuning of uplink and downlink wavelengths, plug and play. However, the introduction of TEC into 50G LR modules increases the cost. In addition, the research and development of silicon-based filters is difficult and complex.

Referring to FIG. 4, an embodiment of the present application provides a wavelength tuning device, which is applied to an optical module, and the device includes one or more of the following units: a control unit, an optical sending unit, a first filtering unit, a second filtering unit, A light detection unit, a light splitting unit, an optical power monitoring unit and an optical fiber adaptation unit.

It can be understood that the above-mentioned unit name is only a way of calling, and other names can also be set according to actual needs. Furthermore, the functions implemented by each unit may be implemented by one device or by multiple devices in actual situations, or multiple units may be combined on one device, etc.

The optical sending unit is configured to send a first optical signal to the first filtering unit, the first filtering unit is configured to process the first optical signal, and the optical splitting unit is configured to process the first optical signal passing through the first optical signal. The first optical signal processed by the filtering unit is split to obtain a second optical signal and a third optical signal, wherein the second optical signal enters the optical power monitoring unit, and the third optical signal enters the optical fiber an adaptation unit; the optical power monitoring unit is used to detect the optical power of the second optical signal to obtain a first optical power value, and the optical power monitoring unit is also used to send the first optical power value to The control unit, the control unit is configured to adjust the emission wavelength of the optical sending unit and/or adjust the passband frequency range of the first filtering unit according to the first optical power value;

and / or,

The optical fiber adapter unit receives the fourth optical signal sent by the optical sending unit of the peer optical module, and the optical splitting unit is used to split the fourth optical signal to obtain a fifth optical signal and a sixth optical signal, wherein the The fifth optical signal enters the optical power monitoring unit, the sixth optical signal enters the first filter unit, and the optical power monitoring unit is used to detect the optical power of the fifth optical signal to obtain the second optical power value, and send the second optical power value to the control unit, the first filtering unit is used to process the sixth optical signal, and the sixth optical signal processed by the first filtering unit The optical signal enters the second filtering unit, the second filtering unit is used to process the sixth optical signal, the sixth optical signal processed by the second filtering unit enters the optical detection unit, the The optical detection unit is configured to detect the received optical power, obtain a third optical power value, and send the third optical power value to the control unit, and the control unit is configured to use the third optical power value and/or For the second optical power value, adjust at least one of the following:

The passband frequency range of the first filtering unit;

The passband frequency range of the second filtering unit;

Indicates the emission wavelength of the optical sending unit of the peer optical module.

In one embodiment of the present application, if the first optical power value is lower than the first threshold (the value can be set according to needs), the control unit is also used to adjust the passband frequency of the first filtering unit range or the emission wavelength of the optical sending unit, until the first optical power value reaches the first threshold;

and / or,

If the second optical power value is lower than the second threshold (the size can be set according to needs), the control unit is also used to adjust the passband frequency range of the second filter unit or the optical transmission unit of the opposite optical module emission wavelength until the second optical power value reaches the second threshold.

In one embodiment of the present application, the device also includes:

The optical alignment unit is configured to adjust the angle of the sixth optical signal processed by the first filtering unit, and the angle-adjusted sixth optical signal enters the second filtering unit.

In one embodiment of the present application, if the first optical signal is not within the passband frequency range of the first filtering unit, the first filtering unit is further configured to receive first information from the control unit , the first filtering unit is further configured to adjust the passband frequency range according to the first information until the first optical signal is within the passband frequency range of the first filtering unit;

and / or,

The optical transmission unit is further configured to receive second information from the control unit, and the optical transmission unit is further configured to adjust the transmission wavelength of the optical transmission unit according to the second information until the first optical signal is at Within the passband frequency range of the first filtering unit.

It can be understood that the optical fiber adapter unit realizes the connection between the internal optical signal of the optical module and the external optical fiber, and is an external interface of the optical module.

In one embodiment of the present application, the optical power monitoring unit includes: one or more photodetectors, that is, includes at least one photodetector.

In an embodiment of the present application, if the sixth optical signal is not within the passband frequency range of the second filtering unit, the second filtering unit is further configured to receive third information from the control unit, The second filtering unit is further configured to adjust a passband frequency range of the second filtering unit according to the third information until the sixth optical signal is within the passband frequency range of the second filtering unit.

In the embodiment of this application, the wavelengths of the uplink and downlink optical signals are different, but the wavelength interval is small, which can be realized by adjusting the wavelength of the same optical module; the uplink and downlink only need one core fiber, which saves fiber resources; the uplink and downlink optical modules of the same type do not need to be distinguished Optical modules and ports reduce deployment and O&M costs; the uplink and downlink wavelength intervals are small, and the delay asymmetry is small, which better supports ultra-high-precision time synchronization; automatic negotiation and tuning of uplink and downlink wavelengths, plug and play. It can be realized by using a common filter unit, which is less difficult to develop and easy to realize, which is conducive to cost reduction and industrial development.

Referring to FIG. 5, an embodiment of the present application provides a wavelength tuning method, which is applied to an optical module (such as a single-fiber bidirectional optical module). The optical module includes one or more of the following units: a control unit, an optical sending unit, a first A filtering unit, a second filtering unit, a light detection unit, a light splitting unit, an optical power monitoring unit and an optical fiber adaptation unit, the specific steps of the method include:

Step 501: The optical sending unit sends a first optical signal to the first filtering unit, the first filtering unit processes the first optical signal, and the optical splitting unit pairs are processed by the first filtering unit After the first optical signal is split to obtain a second optical signal and a third optical signal, wherein the second optical signal enters the optical power monitoring unit, and the third optical signal enters the optical fiber adaptation unit The optical power monitoring unit detects the optical power of the second optical signal to obtain a first optical power value, and the optical power monitoring unit sends the first optical power value to the control unit, and the control The unit adjusts the emission wavelength of the optical sending unit and/or adjusts the passband frequency range of the first filtering unit according to the first optical power value;

and / or,

The optical fiber adapter unit receives the fourth optical signal sent by the optical sending unit of the peer optical module, and the optical splitting unit splits the fourth optical signal to obtain a fifth optical signal and a sixth optical signal, wherein the first The five optical signals enter the optical power monitoring unit, the sixth optical signal enters the first filter unit, and the optical power monitoring unit detects the optical power of the fifth optical signal to obtain a second optical power value, and sending the second optical power value to the control unit, the first filtering unit processes the sixth optical signal, and the sixth optical signal processed by the first filtering unit enters the first two filtering units, the second filtering unit processes the sixth optical signal, the sixth optical signal processed by the second filtering unit enters the optical detection unit, and the optical detection unit detects the received optical power, Obtain a third optical power value, and send the third optical power value to the control unit, and the control unit adjusts at least one of the following according to the third optical power value and/or the second optical power value:

The passband frequency range of the first filtering unit;

The passband frequency range of the second filtering unit;

Indicates the emission wavelength of the optical sending unit of the peer optical module.

In one embodiment of the present application, if the first optical power value is lower than a first threshold, the control unit adjusts the passband frequency range of the first filtering unit or the emission wavelength of the optical sending unit , until the first optical power value reaches the first threshold;

and / or,

If the second optical power value is lower than the second threshold, the control unit adjusts the passband frequency range of the second filter unit or the emission wavelength of the optical transmission unit of the peer optical module until the second optical power The power value reaches the second threshold.

In the embodiment of this application, the wavelengths of the uplink and downlink optical signals are different, but the wavelength interval is small, which can be realized by adjusting the wavelength of the same optical module; the uplink and downlink only need one core fiber, which saves fiber resources; the uplink and downlink optical modules of the same type do not need to be distinguished Optical modules and ports reduce deployment and O&M costs; the uplink and downlink wavelength intervals are small, and the delay asymmetry is small, which better supports ultra-high-precision time synchronization; automatic negotiation and tuning of uplink and downlink wavelengths, plug and play. It can be realized by using a common filter unit, which is less difficult to develop and easy to realize, which is conducive to cost reduction and industrial development.

The workflow of the single-fiber bidirectional optical module wavelength self-tuning method is as follows:

1. Uplink direction (optical module sends optical signal):

1. The optical sending unit transmits the first optical signal, passes through the first filtering unit, and then passes through the optical splitting unit to the optical power monitoring unit.

2. If the optical power value is lower than the threshold X, the control unit adjusts the passband frequency range of the first filter unit or the emission wavelength of the optical sending unit until the optical power value reaches the threshold X.

3. The optical signal is connected to the outside of the optical module through the optical fiber adapter unit.

2. Downlink direction (optical module receives optical signal):

1. Receive the optical signal from the outside of the optical module through the optical fiber adapter unit, pass through the optical splitting unit to the optical power monitoring unit, and judge whether to receive the optical signal from the opposite end.

2. Another part of the optical signal is sent to the first filter through the optical splitting unit, and then sent to the second filtering unit. If the optical paths between the two filters are not aligned, an optical alignment unit needs to be introduced for adjustment.

3. The light signal enters the light detection unit after passing through the second filtering unit.

4. If the optical power value is lower than the threshold value Y, the control unit adjusts the passband frequency range of the second filter unit or the emission wavelength of the optical transmission unit of the peer optical module until the optical power value reaches the threshold value Y.

In the embodiment of this application, the uplink and downlink wavelengths are different, but the wavelength interval is small, which can be realized by adjusting the wavelength of the same optical module; the uplink and downlink only need 1 core fiber, saving fiber resources; the uplink and downlink optical modules of the same type do not need to distinguish between optical modules and Ports, reducing deployment and operation and maintenance costs; small interval between uplink and downlink wavelengths, small delay asymmetry, better support for ultra-high-precision time synchronization; automatic negotiation and tuning of uplink and downlink wavelengths, plug and play. It can be realized by using a common filter unit, which is less difficult to develop and easy to realize, which is conducive to cost reduction and industrial development.

Referring to FIG. 6 , an embodiment of the present application provides an optical module, including the wavelength tuning device as shown in FIG. 4 .

Referring to FIG. 7 , an embodiment of the present application provides a communication device, including the optical module as shown in FIG. 6 .

The steps of the methods or algorithms described in connection with the disclosure of this application can be implemented in the form of hardware, or can be implemented in the form of executing software instructions on a processor. Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory (RAM), flash memory, read-only memory (ROM), erasable programmable read-only memory (EPROM), electrically erasable Programmable read-only memory (EEPROM), registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be a component of the processor. The processor and storage medium may be carried on an Application Specific Integrated Circuit (ASIC). In addition, the ASIC can be carried in the core network interface device. Certainly, the processor and the storage medium may also exist in the core network interface device as discrete components.

Those skilled in the art should be aware that, in the above one or more examples, the functions described in this application may be implemented by hardware, software, firmware or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

The specific implementation described above has further described the purpose, technical solutions and beneficial effects of the application in detail. It should be understood that the above description is only a specific implementation of the application, and is not intended to limit the scope of the application. Scope of protection: All modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of this application shall be included within the scope of protection of this application.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the embodiment of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present application may employ a computer implemented on one or more computer-usable storage media (including but not limited to disk storage, compact disc read-only (CD-ROM), optical storage, etc.) containing computer-usable program codes therein. The form of the Program Product.

Embodiments of the present application are described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow chart or blocks of the flowchart and/or the block or blocks of the block diagrams.

Apparently, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if the modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (14)

1. A wavelength tuning device, applied to an optical module, the device includes one or more of the following units: a control unit, an optical sending unit, a first filtering unit, a second filtering unit, a light detection unit, a light splitting unit, an optical power A monitoring unit and an optical fiber adaptation unit, wherein,

   The optical sending unit is configured to send a first optical signal to the first filtering unit, the first filtering unit is configured to process the first optical signal, and the optical splitting unit is configured to process the first optical signal passing through the first optical signal. performing light splitting on the first optical signal processed by the filtering unit to obtain a second optical signal and a third optical signal;

   and / or,

   The optical fiber adapter unit receives the fourth optical signal sent by the optical sending unit of the peer optical module, and the optical splitting unit is configured to split the fourth optical signal to obtain a fifth optical signal and a sixth optical signal.
2. The device according to claim 1, wherein the second optical signal enters the optical power monitoring unit, and the third optical signal enters the optical fiber adaptation unit; the optical power monitoring unit is used to monitor the Optical power detection is performed on the second optical signal to obtain a first optical power value, and the optical power monitoring unit is further configured to send the first optical power value to the control unit, and the control unit is configured to transmit the first optical power value to the control unit according to the first optical power value An optical power value adjusts the emission wavelength of the optical sending unit, and/or adjusts the passband frequency range of the first filtering unit.
3. The device according to claim 1, wherein the fifth optical signal enters the optical power monitoring unit, the sixth optical signal enters the first filtering unit, and the optical power monitoring unit is used to monitor the performing optical power detection on the fifth optical signal to obtain a second optical power value, and sending the second optical power value to the control unit, the first filtering unit is configured to process the sixth optical signal, The sixth optical signal processed by the first filtering unit enters the second filtering unit, the second filtering unit is used to process the sixth optical signal, and the sixth optical signal processed by the second filtering unit The six optical signals enter the optical detection unit, and the optical detection unit is used to detect the received optical power to obtain a third optical power value, and send the third optical power value to the control unit, and the control unit uses Adjusting at least one of the following according to the third optical power value and/or the second optical power value:

   The passband frequency range of the first filtering unit;

   The passband frequency range of the second filtering unit;

   Indicates the emission wavelength of the optical sending unit of the peer optical module.
4. The device according to claim 1, wherein, if the first optical power value is lower than a first threshold, the control unit is further configured to adjust the passband frequency range of the first filtering unit or the optical transmission the emission wavelength of the unit until the first optical power value reaches the first threshold;

   and / or,

   If the second optical power value is lower than the second threshold, the control unit is further configured to adjust the passband frequency range of the second filter unit or the emission wavelength of the optical transmission unit of the peer optical module until the The second optical power value reaches the second threshold.
5. The device according to claim 2, wherein the device further comprises:

   The optical alignment unit is configured to adjust the angle of the sixth optical signal processed by the first filtering unit, and the angle-adjusted sixth optical signal enters the second filtering unit.
6. The device according to claim 1, wherein,

   If the first optical signal is not within the passband frequency range of the first filtering unit, the first filtering unit is further configured to receive first information from the control unit, and the first filtering unit is further configured to adjusting the passband frequency range according to the first information until the first optical signal is within the passband frequency range of the first filtering unit;

   and / or,

   The optical transmission unit is further configured to receive second information from the control unit, and the optical transmission unit is further configured to adjust the transmission wavelength of the optical transmission unit according to the second information until the first optical signal is at Within the passband frequency range of the first filtering unit.
7. The device according to claim 1, wherein the optical power monitoring unit comprises: one or more photodetectors.
8. The device according to claim 1, wherein if the sixth optical signal is not within the passband frequency range of the second filtering unit, the second filtering unit is further configured to receive third information from the control unit The second filtering unit is further configured to adjust the passband frequency range of the second filtering unit according to the third information until the sixth optical signal is within the passband frequency range of the second filtering unit.
9. A wavelength tuning method, which is applied to an optical module, and the optical module includes one or more of the following units: a control unit, an optical sending unit, a first filtering unit, a second filtering unit, a photodetecting unit, a spectroscopic unit, an optical A power monitoring unit and an optical fiber adaptation unit, the method includes:

   The optical sending unit sends a first optical signal to the first filtering unit, the first filtering unit processes the first optical signal, and the optical splitting unit processes the first optical signal processed by the first filtering unit splitting the first optical signal to obtain a second optical signal and a third optical signal;

   and / or,

   The optical fiber adapter unit receives the fourth optical signal sent by the optical sending unit of the peer optical module, and the optical splitting unit splits the fourth optical signal to obtain a fifth optical signal and a sixth optical signal.
10. The method according to claim 9, wherein the second optical signal enters the optical power monitoring unit, and the third optical signal enters the optical fiber adaptation unit; performing optical power detection on the optical signal to obtain a first optical power value, the optical power monitoring unit sends the first optical power value to the control unit, and the control unit adjusts the the emission wavelength of the optical sending unit, and/or adjust the passband frequency range of the first filtering unit.
11. The method according to claim 9, wherein the fifth optical signal enters the optical power monitoring unit, the sixth optical signal enters the first filter unit, and the optical power monitoring unit performing optical power detection on the optical signal to obtain a second optical power value, and sending the second optical power value to the control unit, the first filtering unit processes the sixth optical signal, and passes through the second optical power value The sixth optical signal processed by a filtering unit enters the second filtering unit, the second filtering unit processes the sixth optical signal, and the sixth optical signal processed by the second filtering unit enters the an optical detection unit, the optical detection unit detects the received optical power, obtains a third optical power value, and sends the third optical power value to the control unit, and the control unit calculates the third optical power value according to the third optical power value and /or the second optical power value, adjust at least one of the following:

    The passband frequency range of the first filtering unit;

    The passband frequency range of the second filtering unit;

    Indicates the emission wavelength of the optical sending unit of the peer optical module.
12. The method according to claim 9, wherein, if the first optical power value is lower than a first threshold, the control unit adjusts the passband frequency range of the first filter unit or the emission of the optical transmission unit wavelength, until the first optical power value reaches the first threshold;

    and / or,

    If the second optical power value is lower than the second threshold, the control unit adjusts the passband frequency range of the second filter unit or the emission wavelength of the optical transmission unit of the peer optical module until the second optical power The power value reaches the second threshold.
13. An optical module, comprising the wavelength tuning device according to any one of claims 1-8.
14. A communication device, comprising the optical module according to claim 13.

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