Patent ID: 11916599
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An optical module, comprising:
at least one processor and a memory coupled with the one or more processors, wherein the memory comprising instructions, when executed by the at least one processor, cause the optical module to:
receive, through a receiver, a wavelength control signal from a central office terminal, wherein the wavelength control signal indicates a target wavelength to be tuned by the optical module, and wherein the wavelength control signal is loaded into a first optical service signal in a pilot tone manner; determine the target wavelength based on the wavelength control signal;
obtain a temperature control list, wherein the temperature control list comprises a correspondence between different temperatures and different wavelengths;
determine a target temperature corresponding to the target wavelength based on the temperature control list; and
tuning, by the optical module, an operating wavelength of the optical module to the target wavelength based on the target temperature;
wherein the instructions that cause the optical module to determine the target temperature corresponding to the target wavelength based on the temperature control list include instructions to cause the optical module to:
determine a reference wavelength, wherein the reference wavelength is a wavelength that is in wavelengths comprised in the temperature control list and that has a smallest difference from the target wavelength;
determine an adjacent wavelength comprised in the temperature control list, wherein the adjacent wavelength is a wavelength comprised in the temperature control list and adjacent to the reference wavelength; and
determine the target temperature based on a maximum cut-off wavelength and a minimum cut-off wavelength in the target wavelength range, and the adjacent wavelength.