CN118118119A

CN118118119A - Integrated color light module and optical fiber data transmission system

Info

Publication number: CN118118119A
Application number: CN202211652528.8A
Authority: CN
Inventors: 韩兆维; 杨胜云
Original assignee: Ruijie Networks Co Ltd
Current assignee: Ruijie Networks Co Ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2024-05-31

Abstract

The application provides an integrated color light module and an optical fiber data transmission system, comprising: the internal color laser module generates N wave band transmitting optical signals under the excitation of the electric signals transmitted by the core switch, and the internal multiplexer is used for combining the N wave band transmitting optical signals; the inner PD detector is used for converting the received optical signals of the N wave bands into received electric signals and transmitting the electric signals to the core switch; the external multiplexer/demultiplexer is used for transmitting the composite transmitting optical signal and receiving the composite receiving optical signal transmitted by the access switch through the same single optical fiber. The transmitting box and the receiving box integrate the passive wavelength division function, and adopt a single optical fiber transmission technology to the outside, so that the occupied space of networking is reduced, and the connection quantity and networking complexity of external optical fibers are greatly reduced.

Description

Integrated color light module and optical fiber data transmission system

Technical Field

The application relates to the technical field of optical fiber transmission, in particular to an integrated color light module and an optical fiber data transmission system.

Background

The core switch is connected with the access switch through an optical module, an optical fiber and passive wavelength division equipment, the core switch generates an electric signal corresponding to transmission data, a color optical laser in the optical module is excited by the electric signal to generate optical signals of a plurality of wave bands, the optical signals of the wave bands are combined through a passive wave combining device arranged in the optical module, one path of combined optical signals after combination is transmitted to a wavelength division multiplexing box of the access switch through an optical fiber connected with a transmitting port to be split, and the optical signals of the wave bands are converted into electric signals through a PD (Photodetector, photoelectric detection) detector and are transmitted to the switch.

In the related art, the color laser and the PD detector are integrated into a hot-plug 16-wave CWDM (Coarse wavelength division multiplexing, sparse wavelength division multiplexing) color optical module, and the module is fixed on a switch in a plug mode, the wavelength division multiplexing box adopts a WDM passive wavelength division box, and the passive wavelength division box is fixed on an ODF (Optical Distribution Frame ) optical fiber rack.

The CWDM color light module adopts 16 wave bands, is connected with the CWDM color light module in an optical fiber connection mode through a transmitting port and a receiving port respectively, has low density of the optical ports of the switch board, and is combined and split by a WDM passive wavelength division box which is independent of the CWDM color light module, a large number of optical fiber jumpers are required to be used between the 16 wave CWDM color light module and the core side WDM passive wavelength division box, and the complexity of the optical fiber connection is high, the workload of installation and maintenance is large, and the maintainability is low.

Disclosure of Invention

In order to solve the problems that a large number of optical fiber jumpers are required to be used between the conventional 16-wave CWDM colored optical module and the core-side WDM passive wavelength division box, and the connection complexity of a large number of optical fibers is high, the workload of installation and maintenance is large and the maintainability is low, the application provides an integrated colored optical module and an optical fiber data transmission system.

According to a first aspect of an embodiment of the present application, there is provided an integrated color light module, including:

The system comprises a transmitting BOX BOX, a color light laser module and an internal multiplexer, wherein the color light laser module is used for generating transmitting light signals corresponding to N wave bands under the excitation of electric signals transmitted by a core switch, and the internal multiplexer module is used for combining the transmitting light signals of the N wave bands into one path of composite transmitting light signals;

The device comprises a receiving BOX BOX, a PD detector and an internal demultiplexer module, wherein the internal demultiplexer module is used for decomposing a received composite received optical signal into N wave band received optical signals, and the PD detector is used for converting the N wave band received optical signals into received electrical signals and transmitting the electrical signals to the core switch;

The external multiplexer/demultiplexer is respectively connected with the transmitting BOX and the receiving BOX and is used for transmitting the composite transmitting optical signal and receiving the composite receiving optical signal transmitted by the access switch through the same single optical fiber;

wherein the emitted light signal is different from the received light signal in wavelength band.

In one or more possible embodiments, the internal multiplexer module includes a plurality of stages of internal multiplexers, where each stage of internal multiplexer is configured to perform a corresponding number of multiplexing on the input optical signals, and transmit the multiplexed optical signals to the internal multiplexer at the next stage until the optical signals of N wavebands are multiplexed into one composite optical signal.

In one or more possible embodiments, the internal demultiplexer module includes a plurality of stages of internal demultiplexers, each stage of the internal demultiplexers is configured to perform a corresponding number of demultiplexing on an input received optical signal, and transmit the demultiplexed optical signal to the internal demultiplexer at a next stage until a path of composite received optical signal is demultiplexed into N-band received optical signals.

In one or more possible embodiments, the N bands of the emitted optical signal are first N bands of the total band range generated by the color laser, and the N bands of the received optical signal are last N bands of the first N bands.

In one or more possible embodiments, the N bands of the received optical signal are first N bands of wavelengths within a total band of wavelengths generated by the color laser, and the N bands of the transmitted optical signal are last N bands of wavelengths after the first N bands of wavelengths.

In one or more possible embodiments, the transmit BOX, the receive BOX, and the external multiplexer/demultiplexer are packaged in a unitary BOX that is connected to the core switch in a hot-swappable manner.

In one or more possible embodiments, the monolithic BOX has a golden finger and a fiber port, the monolithic BOX being connected to the core switch by the golden finger, the fiber port being for inserting an optical fiber connected to the external multiplexer/demultiplexer.

In one or more possible embodiments, the interval between two adjacent bands emitted by the color laser module is N, the N bands of the emitted optical signal are continuous bands with an interval of xn, the N bands of the received optical signal are continuous bands with an interval of xn, and x is a positive integer.

In one or more possible embodiments, the color laser in the color laser module includes any of the following types:

Sparse wavelength division multiplexing CWDM laser, dense wavelength division multiplexing DWDM laser.

According to a second aspect of an embodiment of the present application, there is provided an optical fiber data transmission system including:

The core switch is used for providing an electric signal to drive the integrated color light module to emit light signals; and receiving an electrical signal sent by the integrated color light module;

the integrated color light module is used for generating emission light signals corresponding to N wave bands under the excitation of the electric signals emitted by the core switch, combining the emission light signals into a composite emission light signal, and then emitting the composite emission light signal to the far-end access module; and receiving a path of composite received optical signals sent by the remote access module, decomposing the composite received optical signals into N wave bands of received optical signals, converting the N wave bands of received optical signals into received electrical signals, and transmitting the received electrical signals to the core switch;

The remote access module comprises a passive wavelength division box, at least one single color light module and at least one access switch, wherein the single color light module is connected with the access switch in a one-to-one correspondence manner, the passive wavelength division box is connected with the at least one single color light module and is connected with the integrated color light module through a single optical fiber, and the single color light module emits multiple paths of optical signals under the driving of an electric signal of the access switch, and the multiple paths of optical signals are transmitted to the integrated color light module after being combined into one path of composite received optical signals through the passive wavelength division box; the passive wavelength division box receives one path of composite emission light signals transmitted by the integrated color light optical module through a single optical fiber, and then divides the composite emission light signals into multiple paths of light signals, the multiple paths of light signals are transmitted to the at least one single color light optical module, and the multiple paths of light signals are transmitted to the access switch after photoelectric conversion by the at least one single color light optical module.

The integrated color light module and the optical fiber data transmission system provided by the application have the following beneficial effects:

According to the application, the transmitting box and the receiving box are respectively packaged, the passive wavelength division function is integrated with the transmitting box and the receiving box, a single optical fiber transmission technology is adopted outside, the networking occupied space is reduced, the number of external optical fiber connections and the networking complexity are greatly reduced, the construction cost is further reduced, the maintainability is improved, and the product quality reliability is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a related art core switch fabric for optical fiber transmission;

fig. 2 is a schematic structural diagram of an integrated color light module according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating connection between an integrated color light module and a core switch according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of an integrated color light module corresponding to N being 8 in the embodiment of the present application;

FIG. 5 is a schematic diagram of a structure corresponding to the internal multiplexer/demultiplexer module according to the embodiment of the present application;

Fig. 6 is a schematic diagram of an opposite-side access structure for providing connection of integrated color light modules in an embodiment of the present application;

fig. 7 is a schematic structural diagram of an optical fiber data transmission system according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

As shown in fig. 1, the previous generation core side-to-building link mainly includes: core switch 101+ traditional hot plug 16 wave CWDM (Coarse wavelength division multiplexing, sparse wavelength division multiplexing) color light module 102+ core side WDM (WAVELENGTH DIVISION MULTIPLEXING ) passive wavelength division box 103, WDM passive wavelength division box 103 are fixed on the switch frame, every two passive wavelength division boxes can be inserted into an independent fixed tool frame and then inserted into the access switch frame, and the switch frame only plays a role of fixed tool frame.

The CWDM color light module 102 comprises a color light laser 1021 and a PD detector 1022, the CWDM color light module 102 is connected with the WDM passive wavelength division box 103 by two ports, one is a transmitting port, the other is a receiving port, the transmitting port transmits the light signal transmitted by the color light laser, the receiving port is used for receiving the light signal and transmitting the light signal to the PD detector, the WDM passive wavelength division box 103 is connected with the CWDM color light module 102 in an optical fiber connection mode, the light signals of a plurality of wave bands are combined by the WDM passive wavelength division box 103 and then transmitted to an access switch through one path of composite optical fiber signals, the composite light signal transmitted by the access switch is received by the other optical fiber for splitting, and the split light signals of a plurality of wave bands are transmitted to the PD detector.

The WDM passive wavelength division box 103 belongs to a passive module, does not emit laser, and generally uses a PLC (PLANAR LIGHTWAVE Circuit, optical planar waveguide) technology, but only divides a beam of light into a plurality of beams of light, the CWDM color optical module 102 generates optical signals of 16 wavebands, the core switch 101 and the CWDM color optical module 102 adopt a 16 wave hot plug mode, and two optical fiber ports are adopted to access an access switch of an opposite end. The above scheme of combining the CWDM color light module 102, the WDM passive wavelength division box 103 and the switch frame has low optical port density of the switch board card, the switch board card does not integrate the wavelength division function, and meanwhile, the CWDM color light module 102 hot plugged by the switch needs to use a large number of optical fiber jumpers between the WDM passive wavelength division boxes 103 on the connection core side, and a large number of optical fiber connection has high complexity, large installation and maintenance workload and low maintainability.

In order to solve the above-mentioned problems, an embodiment of the present application provides an integrated color light module, as shown in fig. 2, including:

the BOX21 is packaged with a color laser module 211 and an internal multiplexer module 212, wherein the color laser module 211 is used for generating emission optical signals corresponding to N wave bands under the excitation of an electric signal emitted by a core switch, and the internal multiplexer module 212 is used for combining the emission optical signals of the N wave bands into one path of composite emission optical signals;

The color laser module 211 includes a plurality of color lasers, one color laser is used for generating optical signals of one wavelength band, the emitted optical signals of the N wavelength bands belong to different wavelength bands, and every two adjacent wavelength bands are separated by a corresponding number of nanometers. The internal multiplexer module 212 is configured to implement N:1, as an optional implementation manner, the N is smaller than 16, so that the number of the single color optical modules can be reduced, the optical port density can be increased, and the number of wires from the core side color optical modules to the passive wavelength division device can be reduced.

A receiving BOX22, which is packaged with a PD detector 222 and an internal demultiplexer module 221, where the internal demultiplexer module 221 is configured to decompose a received one-path composite received optical signal into N-band received optical signals, and the PD detector 222 is configured to convert the N-band received optical signals into received electrical signals and transmit the received electrical signals to the core switch;

The internal demultiplexer module 221 is used to implement 1: n, which is less than 16, as an alternative embodiment. The PD detector 222 is configured to convert an optical signal into an electrical signal, and transmit the converted electrical signal to the core switch.

The received optical signals of the N wave bands belong to different wave bands, every two adjacent wave bands are separated by a corresponding number of nanometers, and the wave band of the transmitted optical signal of any wave band is different from the wave band of the received optical signal of any wave band, so that the transmission through the same single optical fiber is realized.

And an external multiplexer/demultiplexer 23, which is connected to the transmitting BOX21 and the receiving BOX22, is externally arranged outside the transmitting BOX21 and the receiving BOX22, and is used for transmitting the composite transmitting optical signal and the composite receiving optical signal transmitted by the receiving access switch through the same single optical fiber, the external multiplexer receives the composite transmitting optical signal transmitted by the internal multiplexer module 212, multiplexes the composite transmitting optical signal onto the single optical fiber to transmit to the access switch, and simultaneously receives the composite receiving optical signal transmitted by the access switch through the single optical fiber, decomposes the composite receiving optical signal through the external demultiplexer, and transmits the decomposed composite receiving optical signal to the internal demultiplexer module 221.

According to the integrated color light module provided by the embodiment of the application, the passive wavelength division function is integrated with the transmitting BOX and the receiving BOX, single-fiber transmission is realized through two-stage multiplexing inside, the layout of fiber connection is simplified, the density of a board card is improved, the single-fiber transmission technology is adopted outside, the networking occupied space is reduced, the number of external fiber connections and the networking complexity are greatly reduced, the construction cost is further reduced, the maintainability is improved, and the product quality reliability is improved.

As an alternative embodiment, as shown in fig. 3, the above-mentioned transmitting BOX21, receiving BOX22 and external multiplexer/demultiplexer 23 are packaged in a whole BOX24, and the whole BOX24 is connected to the core switch in a hot plug manner.

The transmitting BOX21 and the receiving BOX22 are respectively packaged by adopting independent packaging technology, the external multiplexer/demultiplexer 23 is externally arranged outside the transmitting BOX21 and the receiving BOX22, but is internally arranged inside the whole BOX24, the whole BOX24 is positioned outside a core switch and is connected with the core switch in a hot plug mode, a golden finger 25 and an optical fiber port are arranged outside the whole BOX24, the whole BOX24 is connected with the core switch through the golden finger 25, and the optical fiber port is used for inserting optical fibers connected with the external multiplexer/demultiplexer 23. Specifically, the color laser module in the transmitting BOX21 is connected to the core switch through the golden finger 25 for receiving the transmitted electrical signal, and the PD detector 222 in the receiving BOX22 is connected to the core switch through the golden finger 25 for transmitting the electrical signal converted from the received optical signal to the core switch.

As an alternative embodiment, the N bands of the emitted optical signal are the first N bands of the total band range generated by the color laser, and the N bands of the received optical signal are the last N bands after the first N bands. Thus, the wave band with shorter wavelength is used as the wave band of the emission optical signal, and the wave band with longer wavelength is used as the wave band of the receiving optical signal, so that the composite emission optical signal and the composite receiving optical signal can be supported to be transmitted through the same optical fiber, and the composite emission optical signal and the composite receiving optical signal can be decomposed in the same optical fiber more easily.

As another alternative embodiment, the N bands of the received optical signal are the first N bands of the total band range generated by the color laser, and the N bands of the emitted optical signal are the last N bands after the first N bands. Thus, the wave band with longer wavelength is used as the wave band of the emission optical signal, the wave band with shorter wavelength is used as the wave band of the receiving optical signal, the composite emission optical signal and the composite receiving optical signal can be supported to be transmitted through the same optical fiber, and the composite emission optical signal and the composite receiving optical signal can be decomposed in the same optical fiber more easily.

As an alternative embodiment, N is 8, that is, the internal multiplexer module 212 is used to implement 8:1 multiplexing, and the internal demultiplexer module 221 is used to implement 1:8 demultiplexing. Thus, the number of single color light modules is reduced by the emission BOX of 8:1, the density of the board card is improved, and the external multiplexer/demultiplexer adopts 2:1 the number of optical fibers is reduced, compared with the existing 16-wave colored light module scheme, the use of the optical fibers is greatly reduced.

As an alternative embodiment, the internal multiplexer module 212 includes a one-stage internal multiplexer or a multi-stage internal multiplexer, where when the internal multiplexer module 212 includes a multi-stage internal multiplexer, each stage of internal multiplexer is configured to perform a corresponding number of multiplexing on the input transmission optical signals, and transmit the multiplexed transmission optical signals to the next stage of internal multiplexer until the N-band transmission optical signals are multiplexed into one composite transmission optical signal.

When the internal multiplexer module 212 includes a primary internal multiplexer, the primary internal multiplexer is configured to multiplex the input N-channel transmission optical signals into a composite transmission optical signal and transmit the composite transmission optical signal to the external multiplexer. The primary internal demultiplexer is used for decomposing one path of input composite received optical signal into N paths of optical signals and transmitting the N paths of optical signals to the PD detector.

In the case where N is 8 in the embodiment of the present application, as shown in fig. 4, the internal multiplexer module 212 in the transmitting BOX21 includes an internal 8:1 multiplexer, and the internal demultiplexer module 221 in the receiving BOX22 includes an internal 1:8 demultiplexer. The integrated color light module comprises two stages of Mux (Multiplexer) and adopts 3 Mux/Demux (Demultiplexer ), so that 8 channels of a main link can be realized, and the integrated color light module can be optically interconnected with an access side only by a single optical fiber.

Specifically, the first stage Mux is in the transmitting BOX, the 8:1 multiplexer in the transmitting BOX is connected with the color laser, the first stage DeMux is in the receiving BOX, and the 1:8 demultiplexer in the receiving BOX is connected with the PD detector.

Thus, the integrated color light module is obtained by 8 paths of emitting and 8 paths of receiving light with the WDM technology integration function, the color light Laser is a color light LD (Laser Diode) Laser, the device emits BOX to package the 8 paths of color light LD Laser, the device comprises channels with front 8 wave bands, the channel interval is 20nm, the wave bands of the channels are 1271nm, 1291nm, 1311nm, 1331nm, 1351nm, 1371nm, 1391nm and 1411nm, the receiving BOX package comprises 8 paths of PD detectors, the device comprises channels with rear 8 wave bands, the channel interval is 20nm, and the wave bands of the channels are 1431nm, 1451nm, 1471nm, 1491nm, 1511nm, 1531nm, 1551nm and 1571nm. Alternatively, the first 8-band channels may be used as receiving channels, and the second 8-band channels may be used as transmitting channels.

The second-stage Mux/DeMux is based on the BIDI (Bidirectional) technology principle of a single-fiber Bidirectional optical module, and an external second-stage Mux/DeMux is connected to the second-stage Mux/DeMux through optical fibers by an internal 8:1 multiplexer, so that 8-way transmission and 8-way reception of single-fiber transmission are realized. The second stage Mux/DeMux is external to the transmit BOX and the receive BOX packages, but is built into the overall BOX housing package, including a 2:1 multiplexer Mux and a 1:2 demultiplexer DeMux. After the above composite emission optical signal is transmitted to the opposite end through a single optical fiber, it interacts with multiple access switches, as shown in fig. 6, on the opposite end access side, the external passive wavelength division box 61 is used to divide the wave, and the optical signal after the division is transmitted to the single color optical module 62, where the passive wavelength division box 61 is placed outside the access switch 63 and fixed by the ODF (Optical Distribution Frame ) optical fiber rack 60, the ODF optical fiber rack 60 is used to comb the optical fiber, the single color optical module 62 includes a color laser and a PD detector, the single color optical module 62 is connected with the access switch 63 by adopting a hot plug mode, and the process in the emission direction is specifically referred to as related technology, which is not described in detail herein, so that the butt joint work with the conventional 8PCS single CWDM SFP (Small Form-factor Pluggables) that works on the switch, small-packaged pluggable optical module) +color optical module can be realized.

When the internal multiplexer module 212 includes multiple stages of internal multiplexers, the number of the first stage of internal multiplexers is multiple, the number of the last stage of internal multiplexers is 1, and each stage of internal multiplexer is configured to perform a corresponding number of multiplexing on the input transmission optical signals, and transmit the multiplexed transmission optical signals to the next stage of internal multiplexer until the N wave band transmission optical signals are multiplexed into one composite transmission optical signal.

In the embodiment of the present application, when N is 8, as shown in fig. 5, the internal multiplexer module includes two stages of internal multiplexers, where the first stage of internal multiplexer includes an internal 4:1 multiplexer 212a and an internal 4:1 multiplexer 212b, and the second stage of internal multiplexer is an internal 2:1 multiplexer 212c. The internal demultiplexer module includes two stages of internal demultiplexers, the first stage of internal demultiplexers including an internal 1:2 demultiplexer 221c, and the second stage of internal demultiplexers including an internal 1:4 demultiplexer 221a and an internal 1:4 demultiplexer 221b.

Of course, the multi-stage internal multiplexer and the multi-stage internal demultiplexer may also be in other multi-stage forms, for example, the multi-stage internal multiplexer includes a first stage of 4 internal 2:1 multiplexers and a second stage of 1:1 multiplexers, the multi-stage is not limited to two stages, but may also be three stages, and the multi-stage internal demultiplexer may be in the same multi-stage form, which is not described herein.

As an optional implementation manner, the data transmission rate supported by the color laser module is at least one of the following: 1Gbit/s, 1.25Gbit/s, 10Gbit/s, 25Gbit/s, 50Gbit/s. When different data transmission rates are employed, different packaging techniques may be employed to package the transmit BOX and the receive BOX, respectively.

As an alternative embodiment, the packaging of the transmit BOX and the receive BOX conforms to N:1 and adopts standard dimensions.

Under the condition that the packaging technology can meet the requirements, the standard BOX packaging technology and the corresponding standard size are directly adopted to realize the packaging of the transmitting BOX and the receiving BOX.

For example, when the N is 8 and the data transmission rate supported by the color laser module is 10Gbit/s, the packaging of the transmitting BOX and the receiving BOX is realized by adopting standard BOX packaging technology and corresponding standard size.

For example, when the N is 8 and the data transmission rate supported by the color laser module is 1.25Gbit/s, the packaging of the transmitting BOX and the receiving BOX is realized by adopting standard BOX packaging technology and corresponding standard size.

For example, when N is 8 and the data transmission rate supported by the color laser module is 25Gbit/s, the packaging of the transmitting BOX and the receiving BOX is realized by adopting standard BOX packaging technology and corresponding standard size.

The standard BOX packaging technology can be, but is not limited to, 400G QSFP-DD LR8 device technology, and the packaging technology can be used for integrating 8 SFPs (Small Form-factor Pluggables, small package pluggable) +color light modules (including color light laser modules/PD detectors) and WDM passive wavelength division devices (internal multiplexer modules/internal demultiplexer modules) on an access side into one packaging device, and is connected with a core switch in a pluggable manner, so that an optical fiber fixing frame and an external wavelength division multiplexing BOX of the core switch are omitted, networking occupied space is reduced, the number of external optical fiber connections and networking complexity are greatly reduced, construction cost is further reduced, maintainability is improved, and product quality reliability is improved.

The larger-size packaging standard can include, but is not limited to, CFP (CHIP SCALE PACKAGE, chip level packaging), CFP2 and the like, the matched packaging industry chain is mature, and the MSA (Multi Source protocol) standard protocol is available, so that the large-scale popularization is easy.

When the BOX is transmitted and received, a metal structural part is adopted, an optical fiber is built in for connection, a fiber coiling frame and an LC interface can be built in, and a PCBA (Printed Circuit Board +assembly) is specifically adopted for assembling a printed circuit board.

As another alternative embodiment, the packaging of the transmit BOX and the receive BOX conforms to N:1 and custom dimensions are adopted. If the color laser module and the internal multiplexer have larger sizes, and the internal demultiplexer and the PD detector cannot meet the packaging requirements by adopting the packaging technology of standard size, the packaging can be performed by adopting the corresponding technology of the BOX packaging technology standard, but the size can be customized according to the needs, such as customizing non-standard sizes of shell metal pieces, optical port connectors and the like according to the needs, so as to meet the needs of different scenes.

For example, when the above N is 8, the data transmission rate supported by the color laser module is 1Gbit/s, 10Gbit/s, 25Gbit/s, 50Gbit/s, and the packaging of the transmitting BOX and the receiving BOX is implemented by using standard BOX packaging technology and custom size.

Illustratively, when N is other than 8, the data transmission rate supported by the color laser module is 1Gbit/s, 10Gbit/s, 25Gbit/s, or 50Gbit/s, and the packaging of the transmitting BOX and the receiving BOX is implemented by using standard BOX packaging technology and custom size.

As an alternative embodiment, the color laser of the color laser module may be, but not limited to, a sparse wavelength division multiplexing CWDM laser or a dense wavelength division multiplexing DWDM laser, where when different types of color lasers are used, the interval between two adjacent wavelength bands is different, for example, the interval between two adjacent wavelength bands is 20nm.

As an optional implementation manner, the interval between two adjacent bands emitted by the color light laser module is N, the N bands of the emitted light signal are continuous bands with an interval of xn, the N bands of the received light signal are continuous bands with an interval of xn, and x is a positive integer.

When x is 1, the interval between every two adjacent wave bands in the N wave bands is N, and taking a CWDM laser as an example, the interval between the two adjacent wave bands is 20nm; when x is 2, the N wave bands are continuous wave bands with an interval of 40 nm. When DWDM is used in a color laser, the spacing between adjacent bands is less than 20nm.

The embodiment of the application also provides an optical fiber data transmission system, as shown in fig. 7, which comprises:

A core switch 701 for providing an electrical signal to drive the integrated color light module to emit a light signal; and receiving an electrical signal sent by the integrated color light module;

The integrated color optical module 702 is configured to generate, under the excitation of the electrical signal transmitted by the core switch 701, transmitted optical signals corresponding to N wavebands, and combine the signals into a composite transmitted optical signal, and transmit the composite transmitted optical signal to the remote access module 703; and receives a path of composite received optical signal sent by the remote access module 703, and converts the composite received optical signal into a received electrical signal after decomposing the received optical signal into N wavebands, and transmits the received electrical signal to the core switch 701;

The remote access module 703 comprises a passive wavelength division box 703a, at least one single color light module 703b and at least one access switch 703c, wherein the single color light module 703b is connected with the access switch 703c in a one-to-one correspondence manner, the passive wavelength division box 703a is connected with the at least one single color light module 703b and is connected with the integrated color light module 702 through a single optical fiber, the single color light module 703b emits multiple paths of optical signals (one single color light module 703b can emit multiple paths of optical signals) under the driving of an electric signal of the access switch 703c, and the multiple paths of optical signals are multiplexed into one path of composite received optical signals through the passive wavelength division box 703a and then transmitted to the integrated color light module 702; the passive wavelength division box 703a receives one path of composite emission optical signal transmitted by the integrated color optical module 702 through a single optical fiber, divides the composite emission optical signal into multiple paths of optical signals, and transmits the multiple paths of optical signals to the at least one single color optical module 703b, and the at least one single color optical module 703b performs photoelectric conversion on the multiple paths of optical signals and sends the multiple paths of optical signals to the access switch 703c (one single color optical module 703b can receive the multiple paths of optical signals, performs photoelectric conversion and sends the multiple paths of optical signals to the corresponding access switch 703 c).

Specific connection and signal transmission processes are described with reference to the above embodiments, and the wavelength range of the above multi-path optical signal may be, but not limited to, 1431-1571nm.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An integrated color light module, comprising:

2. The integrated color optical module according to claim 1, wherein the internal multiplexer module comprises a plurality of stages of internal multiplexers, each stage of internal multiplexer is configured to perform a corresponding number of multiplexing on the input emission optical signals, and transmit the multiplexed emission optical signals to the internal multiplexer at the next stage until the emission optical signals of N wavebands are multiplexed into one composite emission optical signal.

3. The integrated color optical module of claim 1, wherein the internal demultiplexer module comprises a plurality of stages of internal demultiplexers, each stage of the internal demultiplexers being configured to perform a corresponding number of demultiplexing on an input received optical signal, and transmit the demultiplexed optical signal to a next stage of the internal demultiplexers until a path of the composite received optical signal is demultiplexed into N-band received optical signals.

4. The integrated color light module as claimed in any one of claims 1-3, wherein,

The N wave bands of the emitted light signals are the first N wave bands in the total wave band range generated by the color light laser, and the N wave bands of the received light signals are the last N wave bands after the first N wave bands.

5. The integrated color light module as claimed in any one of claims 1-3, wherein,

The N wave bands of the received optical signals are the first N wave bands in the total wave band range generated by the color optical laser, and the N wave bands of the transmitted optical signals are the last N wave bands after the first N wave bands.

6. The integrated color light module as claimed in any one of claims 1-3, wherein,

The transmit BOX, the receive BOX, and the external multiplexer/demultiplexer are packaged in a unitary BOX that is connected to the core switch in a hot-swappable manner.

7. The integrated color optical module of claim 6, wherein the integral BOX has a golden finger and an optical fiber port, the integral BOX being connected to the core switch by the golden finger, the optical fiber port being for inserting an optical fiber connected to the external multiplexer/demultiplexer.

8. The integrated color optical module of any one of claims 1-3 wherein adjacent two bands emitted by the color laser module are separated by N, N bands of the emitted optical signal are consecutive bands separated by xn, N bands of the received optical signal are consecutive bands separated by xn, and x is a positive integer.

9. An integrated colour light module according to any of claims 1-3, wherein the colour light lasers in the colour light laser module comprise any of the following types:

10. An optical fiber data transmission system, comprising:

The remote access module comprises a passive wavelength division box, at least one single color light module and at least one access switch, wherein the single color light module is connected with the access switch in a one-to-one correspondence manner, the passive wavelength division box is connected with the at least one single color light module and is connected with the integrated color light module through a single optical fiber, the single color light module emits multiple paths of optical signals under the driving of an electric signal of the access switch, and the multiple paths of optical signals are transmitted to the integrated color light module after being combined into one path of composite received optical signals through the passive wavelength division box; the passive wavelength division box receives one path of composite emission optical signals transmitted by the integrated color optical module through a single optical fiber, and then divides the composite emission optical signals into multiple paths of optical signals, the multiple paths of optical signals are transmitted to the at least one single color optical module, and the multiple paths of optical signals are transmitted to the access switch after photoelectric conversion by the at least one single color optical module.