US-12628260-B2 - Centralized light supply apparatus

Abstract

Embodiments of the present disclosure provide a centralized light supply apparatus, including: a controller, at least one light source pool, and a plurality of CPO switches. The controller is connected with the light source pool and the plurality of CPO switches through a two-way communication channel, and the light source pool is connected with the plurality of CPO switches through a photoelectric hybrid connector. The controller is configured to control the light source pool and the plurality of CPO switches. The light source pool is configured to output a light source to the plurality of CPO switches under control of the controller. The plurality of CPO switches are configured to modulate the received light source into an optical signal under control of the controller and output the optical signal. The light source pool may be cascaded and expanded through one controller. The problems that in the related art, an ELS panel pluggable light source occupies a front panel of a device and occupies a large space can be solved. Through the photoelectric hybrid connector, more light sources can be connected and occupy small space on the panel, and the space occupied by the panel is greatly reduced.

Inventors

• Ningfeng TANG
• Yingchun Shang
• Xun Chen
• Bing Ye

Assignees

• ZTE CORPORATION

Dates

Publication Date

20260512

Application Date

20221129

Priority Date

20211215

Claims (18)

1. 1 . A centralized light supply apparatus, comprising: a controller, at least one light source pool, and a plurality of co-packaged optics (CPO) switches, wherein the controller is connected with the light source pool and the plurality of CPO switches through a two-way communication channel, and the light source pool is connected with the plurality of CPO switches through a photoelectric hybrid connector; the controller is configured to control the light source pool and the plurality of CPO switches; the light source pool is configured to output a light source to the plurality of CPO switches under control of the controller; and the plurality of CPO switches are configured to modulate the received light source into an optical signal under control of the controller and output the optical signal; wherein the light source pool comprises: a plurality of light sources and one optical cross matrix, the optical cross matrix is respectively connected with the plurality of light sources and the plurality of CPO switches through optical fibers, and the plurality of light sources are connected with the controller respectively.
2. 2 . The centralized light supply apparatus according to claim 1 , wherein the plurality of light sources in the light source pool and the optical cross matrix belong to an integrated module, and an internal controller is arranged in the light source pool.
3. 3 . The centralized light supply apparatus according to claim 1 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
4. 4 . The centralized light supply apparatus according to claim 1 , wherein the controller comprises a control body and external interfaces, the external interfaces comprise a first interface connected with the plurality of CPO switches, and a second interface connected with the plurality of light sources and the optical cross matrix.
5. 5 . The centralized light supply apparatus according to claim 4 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
6. 6 . The centralized light supply apparatus according to claim 4 , wherein the plurality of light sources in the light source pool and the optical cross matrix belong to an integrated module, and an internal controller is arranged in the light source pool.
7. 7 . The centralized light supply apparatus according to claim 1 , wherein the plurality of light sources comprise a plurality of normal light sources, hot backup light sources, and cold backup light sources, the optical cross matrix comprises a plurality of controllable optical switches, each of the plurality of CPO switches comprises a plurality of CPO modules, one controllable optical switch is connected with one normal light source, each of the plurality of controllable optical switches is connected with the hot backup light sources and the cold backup light sources, and one controllable optical switch is connected with one CPO module, and is used for arbitrary switching between input light sources and output light sources, and protecting the plurality of light sources.
8. 8 . The centralized light supply apparatus according to claim 7 , wherein the controller is further configured to close the optical cross matrix after power-on, and control startup of a light source corresponding to a target CPO module after completing handshake and confirmation with the target CPO module in the plurality of CPO switches; and the target CPO module is configured to send light source connection status information to the controller after handshake and confirmation with the controller.
9. 9 . The centralized light supply apparatus according to claim 8 , wherein the target CPO module is further configured to write the light source connection status information into a status register; and the controller is configured to obtain the light source connection status information of the target CPO module by polling the status register, and control a controllable optical switch corresponding to the target CPO module to turn on the plurality of light sources after determining that the target CPO module indicates startup of the plurality of light sources.
10. 10 . The centralized light supply apparatus according to claim 9 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
11. 11 . The centralized light supply apparatus according to claim 8 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
12. 12 . The centralized light supply apparatus according to claim 7 , wherein the CPO module is further configured to store information of a faulty light source to a status register when detecting that a received light source is instable or no light source is received; the controller obtains the information and notifies the light source pool of the information of the faulty light source by polling the status register; the light source pool is configured to switch the hot backup light source to the faulty light source after confirming the information of the faulty light source, meanwhile change the cold backup light source into the hot backup light source, and send an early warning signal to the controller; and the controller is further configured to maintain light sources of the light source pool according to the early warning signal.
13. 13 . The centralized light supply apparatus according to claim 12 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
14. 14 . The centralized light supply apparatus according to claim 7 , wherein the CPO module is configured to obtain fault information of a target light source, adjust traffic according to the fault information of the target light source, and write the fault information of the target light source into a status register, wherein the fault information of the target light source is pre-determined by the controller according to historical usage data of the plurality of light sources and status data of the optical cross matrix, and then is written into the register; and the controller is further configured to obtain the fault information of the target light source by polling the status register, and notify a controllable optical switch corresponding to the CPO module to perform light source switching.
15. 15 . The centralized light supply apparatus according to claim 14 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
16. 16 . The centralized light supply apparatus according to claim 7 , wherein the CPO module is configured to detect disconnection from the photoelectric hybrid connector and write corresponding light source absence information into a status register; and the controller is further configured to obtain the corresponding light source absence information of the CPO module by polling the status register, and control shutdown of a light source corresponding to the CPO module.
17. 17 . The centralized light supply apparatus according to claim 16 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.
18. 18 . The centralized light supply apparatus according to claim 7 , wherein the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning pins, and alternatively, the photoelectric hybrid connector comprises optical signal coupling points, electrical signal connection points, and positioning holes, wherein the optical signal coupling points are used for transmitting a light source to the plurality of CPO switches; the electrical signal connection points and the positioning pins are used for connecting the controller; and alternatively, the electrical signal connection points and the positioning holes are used for connecting the controller.

Description

CROSS-REFERENCE TO RELATED APPLICATION The present disclosure claims the priority of Chinese patent application No. CN202111539017.0, entitled “CENTRALIZED LIGHT SUPPLY APPARATUS”, filed on Dec. 15, 2021, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD Embodiments of the present disclosure relate to the field of communication, and in particular to a centralized light supply apparatus. BACKGROUND Currently, there are mainly two methods to realize a co-packaged optics (CPO) light source, including a built-in light source and a panel pluggable light source with an external laser source (ELS). The built-in light source has the main advantages that the light source is built-in, an optical path is short, a coupling loss is small, and laser efficiency is relatively high. However, the defects are also very clear. Firstly, the technical difficulty is very high. Currently, there are few CPO light sources that can truly achieve commercial silicon-based integration. Secondly, because the built-in light source is close to a switch chip, the ambient temperature is relatively high, which leads to increased power consumption of a laser, decreased luminous efficiency, and an increased failure rate. The ELS panel pluggable light source avoids the cases of the technical difficulties and the high ambient temperature of the built-in light source, but has a fatal defect of occupying a front panel of the device. Meanwhile, because each pluggable light source is independent, there are also serious problems in the aspect of ensuring the failure of light sources. No solution has been proposed to solve the problem that the ELS panel pluggable light source in the related art occupies the front panel of the device. SUMMARY Embodiments of the present disclosure provide a centralized light supply apparatus, so as to at least solve the problems that in the related art, an ELS panel pluggable light source occupies a front panel of a device, and meanwhile, because each pluggable light source is independent, there are also serious problems in the aspect of ensuring the failure of light sources. Embodiments of the present disclosure provide a centralized light supply apparatus. The centralized light supply apparatus includes: a controller, at least one light source pool, and a plurality of CPO switches. The controller is connected with the light source pool and the plurality of CPO switches through a two-way communication channel, and the light source pool is connected with the plurality of CPO switches through a photoelectric hybrid connector. The controller is configured to control the light source pool and the plurality of CPO switches. The light source pool is configured to output a light source to the plurality of CPO switches under control of the controller. The plurality of CPO switches are configured to modulate the received light source into an optical signal under control of the controller and output the optical signal. In an exemplary embodiment, the light source pool includes: a plurality of light sources and one optical cross matrix, the optical cross matrix is respectively connected with the plurality of light sources and the plurality of CPO switches through optical fibers, and the plurality of light sources are connected with the controller respectively. In an exemplary embodiment, the controller includes a control body and external interfaces, the external interfaces include a first interface connected with the plurality of CPO switches, and a second interface connected with the plurality of light sources and the optical cross matrix. In an exemplary embodiment, the plurality of light sources include a plurality of normal light sources, hot backup light sources, and cold backup light sources, the optical cross matrix includes a plurality of controllable optical switches, each of the plurality of CPO switches includes a plurality of CPO modules, one controllable optical switch is connected with one normal light source, each of the plurality of controllable optical switches is connected with the hot backup light sources and the cold backup light sources, and one controllable optical switch is connected with one CPO module, and is used for arbitrary switching between input light sources and output light sources, and protecting the plurality of light sources. In an exemplary embodiment, the controller is further configured to close the optical cross matrix after power-on, and control startup of a light source corresponding to a target CPO module after completing handshake and confirmation with the target CPO module in the plurality of CPO switches. The target CPO module is configured to send light source connection status information to the controller after handshake and confirmation with the controller. In an exemplary embodiment, the target CPO module is further configured to write the light source connection status information into a status register; and the controller is configured to obtain