Optical module and parameter transmission method, detection method, control method thereof, and fronthaul system

A method for transmitting performance parameters of a far-end optical module of a far-end node, comprising:

• generating, in response to at least one of a plurality of registers of the far-end optical module becoming a first source register, an uplink optical signal according to ID information of the first source register and a register value of the first source register, wherein the first source register is a register having a changed register value of the plurality of registers, and register values of the plurality of registers have a mapping relationship with performance parameters of the far-end optical module;
• and
• transmitting the uplink optical signal to a near-end optical module of a near-end node, wherein the uplink optical signal is used for modifying a register value of a corresponding mapping register of the near-end optical module,
• wherein the ID information of the first source register and the register value of the first source register are carried in the uplink optical signal, and the register value of the first source register is used for indicating a performance parameter of the far-end optical module.