System, communication apparatus, optical module, method, and optical network

A communication apparatus, wherein the communication apparatus comprises a control module and a service module, the service module is configured to connect to an optical transmitter unit in an optical module, the optical module comprises a storage unit and the optical transmitter unit, the optical transmitter unit comprises a modulator, and the storage unit stores nonlinear compensation information of the modulator;

• the control module is configured to read the nonlinear compensation information from the storage unit, and configure a nonlinear compensation coefficient of the service module based on the nonlinear compensation information;
• and
• the service module is configured to perform nonlinear compensation on an electrical signal based on the configured nonlinear compensation coefficient, and then send to the optical transmitter unit.

An optical module, wherein the optical module comprises a storage unit and an optical transmitter unit, the optical transmitter unit comprises a modulator, and the optical transmitter unit is configured to connect to a communication apparatus;

• the storage unit is configured to store nonlinear compensation information of the modulator;
• and
• the modulator is configured to modulate an electrical signal input from the communication apparatus to the optical transmitter unit into an optical signal, wherein the electrical signal is an electrical signal obtained by performing nonlinear compensation based on the nonlinear compensation information read from the storage unit.