CN-122027917-A - Optical chip and optical communication system

CN122027917ACN 122027917 ACN122027917 ACN 122027917ACN-122027917-A

Abstract

The application provides an optical chip and an optical communication system. The optical chip comprises an optical switch, a first optical splitter and a control unit, wherein the optical switch comprises a first output port and a second output port, the first input port is used for being connected with optical communication equipment, or the first output port is used for being connected with the optical communication equipment, the first optical splitter comprises a second input port and a third output port, the second input port is connected with the second output port, and when the optical communication equipment fails, the control unit controls the first optical splitter so that part or all of first signal light is output through the third output port. Through the high integrated structural design that an optical switch on the piece is connected with the beam splitter to when optical communication equipment breaks down, export first signal light along the output port of beam splitter, and further adjust the power of first signal light through the beam splitter, thereby improve the availability after the port output of beam splitter of first signal light.

Inventors

ZHANG BIN
WANG SHAOWU
LIU JIANG
LIAO ZIHAO

Assignees

华为技术有限公司

Dates

Publication Date: 20260512
Application Date: 20241112

Claims (11)

1. An optical chip, characterized by comprising an optical switch, a first beam splitter and a control unit, wherein: The optical switch comprises a first input port, a first output port and a second output port, wherein the first input port is used for being connected with optical communication equipment, or the first output port is used for being connected with the optical communication equipment; the first optical splitter comprises a second input port and a third output port, wherein the second input port is connected with the second output port; The first input port is used for receiving first signal light; when the optical communication equipment works normally, the control unit is used for controlling the optical switch so that part or all of the first signal light is output through the first output port; When the optical communication device fails, the control unit is used for controlling the optical switch to enable all of the first signal light to be output through the second output port, and the control unit is also used for controlling the first optical splitter to enable part or all of the first signal light to be output through the third output port.
2. The optical chip of claim 1, wherein the first optical splitter further comprises a fourth output port for connecting to a detection unit.
3. The optical chip of claim 2, wherein the optical chip, Before the control unit is configured to control the optical switch so that part or all of the first signal light is output through the first output port: the control unit is used for controlling the optical switch to enable second signal light to be output through the second input port, and the second signal light is part or all of the first signal light; the control unit is configured to control the optical switch so that part or all of the first signal light is output through the first output port, and includes: After the detection unit determines that the third signal light meets the first condition, the control unit is further used for controlling the optical switch so that all of the first signal light is output through the first output port, wherein the third signal light is signal light output through the fourth output port, and the third signal light is part or all of the second signal light; the control unit is further configured to control the optical switch to output a portion of the first signal light through the first output port after the detection unit determines that the third signal light does not satisfy the first condition.
4. The optical chip of claim 3, wherein the first condition is that the power of the third signal light is less than or equal to a first threshold.
5. The optical chip of any one of claims 1 to 4, further comprising a second optical splitter, wherein: The second optical splitter comprises a third input port and a fifth output port, and the third input port is connected with the third output port.
6. An optical communication system comprising a first optical fiber assembly, a second optical fiber assembly, an optical communication device, a first optical chip, a second optical chip, and an optical channel, wherein: Any one of the first optical chip and the second optical chip comprises at least one input port and at least two output ports, and the first optical chip and the second optical chip are the optical chips of any one of claims 1 to 4; The first optical fiber assembly is connected with an input port of the first optical chip, one output port of the first optical chip is connected with the optical communication equipment, and the other output port of the first optical chip is connected with one end of the optical channel; the input port of the second optical chip is connected with the optical communication equipment, one output port of the second optical chip is connected with the second optical fiber assembly, and the other output port of the second optical chip is connected with the other end of the optical channel.
7. The system according to claim 6, further comprising a first detection unit and/or a second detection unit, wherein: The first optical chip further comprises an output port connected with the first detection unit; The second optical chip further comprises an output port connected with the second detection unit.
8. The system of claim 6 or 7, wherein: one end of the optical channel is also provided with a first isolator, and/or The other end of the optical channel is also provided with a second isolator.
9. The system according to any one of claims 6 to 8, further comprising a third beam splitter provided in the optical channel, the third beam splitter being configured to split the signal light transmitted in the optical channel.
10. The system according to any one of claims 6 to 9, further comprising a third detection unit for detecting the power of the signal light transmitted in the optical channel.
11. The system according to any one of claims 6 to 10, further comprising: an optical transmission unit connected to the first optical fiber assembly, and/or And the light receiving unit is connected with the second optical fiber assembly.

Description

Optical chip and optical communication system Technical Field The present application relates to the field of optical communications technologies, and in particular, to an optical chip and an optical communications system. Background In the industrial exchange unit single ring network scenario, most of the networks are single ring link networks in consideration of optical fiber cost and wiring cost. Because the local point networking of the industrial switch basically maintains a serial connection or looped network mode, once equipment damage, power failure and other scenes exist in the looped network, the whole looped network flow can be influenced. To increase the robustness of the network, failed devices in the network need to be discarded (bypass). Optical switches are often used to achieve shorting of faulty devices, and currently used technologies include mechanical optical switches, micro-electro-MECHANICAL SYSTEM (MEMS) optical switching, and liquid crystal optical switching. However, the optical switching devices are added with new devices when being implemented, and only a single switching function can be formed, so that the optical switching device has no integration capability and is too high in cost, and the signal light after the ports are switched cannot be utilized, so that the application of the optical switching device in a network is limited. Therefore, how to design an optical switch applied to an optical network, which can switch the transmission optical path of the signal light after the optical communication device fails and further utilize the signal light after the transmission of the switch port is a technical problem to be solved. Disclosure of Invention The application provides an optical chip and an optical communication system, which reduce the equipment short circuit cost through an on-chip structural design. In a first aspect, an optical chip is provided, which comprises an optical switch, a first optical splitter and a control unit, wherein the optical switch comprises a first input port, a first output port and a second output port, the first input port is used for being connected with optical communication equipment, or the first output port is used for being connected with the optical communication equipment, the first optical splitter comprises a second input port and a third output port, the second input port is connected with the second output port, the first input port is used for receiving first signal light, the control unit is used for controlling the optical switch to enable part or all of the first signal light to be output through the first output port when the optical communication equipment works normally, the control unit is further used for controlling the optical switch to enable the first signal light to be output through the second output port when the optical communication equipment malfunctions, and the control unit is further used for controlling the first optical splitter to enable part or all of the first signal light to be output through the third output port. In the optical chip structure, through the high-integration structural design that the optical switch on the chip is connected with the optical splitter, when the optical communication equipment breaks down, the first signal light is output along the output port of the optical splitter without passing through the optical communication equipment, so that the short circuit of the optical communication equipment is realized, the power of the first signal light is further adjusted through the optical splitter, the signal light transmitted by the switching port can be further utilized, and the smooth passing of the whole network is protected. With reference to the first aspect, in certain implementations of the first aspect, the first optical splitter further includes a fourth output port, and the fourth output port is used for connecting with the detection unit. In the above optical chip structure, the output port of the beam splitter is connected with the detection unit, so that the signal light transmitted in the optical chip is fed back and regulated by using the power detection result of the detection unit, and the power self-adaption is realized. With reference to the first aspect, in some implementations of the first aspect, before the control unit is configured to control the optical switch so that part or all of the first signal light is output through the first output port, the control unit is configured to control the optical switch so that the second signal light is output through the second input port, and the control unit is configured to control the optical switch so that part or all of the first signal light is output through the first output port, including, after the detection unit determines that the third signal light satisfies the first condition, the control unit is further configured to control the optical switch so that all of the first signal light is output through the fir