Optical signal processing method and apparatus

An optical signal processing apparatus, wherein the optical signal processing apparatus serves as a first receiver, and the apparatus comprises:

• one or more processors, and
• a storage medium configured to store program instructions;
• wherein, when executed by the one or more processors, the instructions cause the device to:
• obtain a first sending signal, wherein the first sending signal is a signal that is sent by a first transmitter to a second receiver through a first optical fiber and the first sending signal includes first sending signals at multiple preset times before a current moment;
• determine estimation information of a backward optical signal based on the first sending signal, wherein the backward optical signal is generated during transmission of the first sending signal, the backward optical signal is transmitted through at least one fiber section in the first optical fiber, and a transmission direction of the backward optical signal in the at least one fiber section is opposite to a transmission direction of the first sending signal;
• and
• obtain a second sending signal based on the estimation information of the backward optical signal, wherein the second sending signal is a signal sent by a second transmitter to a first receiver through a second optical fiber, at least a part of the first optical fiber and a part of the second optical fiber overlap, and, in the overlapping part of optical fibers, the transmission direction of the first sending signal is opposite to a transmission direction of the second sending signal.

A non-transitory computer-readable storage medium having a program recorded thereon;

• wherein the program makes the computer execute a method comprising:
• obtaining a first sending signal, wherein the first sending signal is a signal that is sent by a first transmitter to a second receiver through a first optical fiber and the first sending signal includes first sending signals at multiple preset times before a current moment;
• determining estimation information of a backward optical signal based on the first sending signal, wherein the backward optical signal is generated during transmission of the first sending signal, the backward optical signal is transmitted through at least one fiber section in the first optical fiber, and a transmission direction of the backward optical signal in the at least one fiber section is opposite to a transmission direction of the first sending signal;
• and
• obtaining a second sending signal based on the estimation information of the backward optical signal, wherein the second sending signal is a signal sent by a second transmitter to a first receiver through a second optical fiber, and at least a part of the first optical fiber and a part of the second optical fiber overlap;
• and, in the overlapping part of optical fibers, the transmission direction of the first sending signal is opposite to a transmission direction of the second sending signal.