Optical module and laser wavelength shift adjusting method and device of optical module

Abstract

The invention discloses an optical module and a laser wavelength shift adjusting method and device of the optical module, and belongs to the field of optical communication. A wavelength selector allows light of the first wavelength in a first light beam to pass and reflects light not of the first wavelength in the first light beam, and thus, light not of the first wavelength is separated from the first light beam. A processor obtains the optical power of the light not of the first wavelength via a second monitoring detector, obtains the optical power of a second light beam via a first monitoring detector, and obtains the proportion of the light not of the first wavelength in the first light beam according to the optical power of the first light not of the first wavelength and the optical power of the second light beam. The light not of the first wavelength is light of the wavelength shift. According to the proportion, the processor can adjust the temperature of a laser via a temperature controller, and thus overcome the wavelength shift of the laser.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to an optical module and a method and a device for adjusting the wavelength offset of an optical module laser. Background technique [0002] At present, optical communication with light wave as the carrier has become the main way of global network data communication. In the optical communication industry, the optical module is used to realize photoelectric conversion. Its transmitting optical device (TOSA) converts electrical signals into optical signals through lasers, and transmits the optical signals through optical fibers to realize data transmission; its receiving optical device (TOSA) ROSA) receives an optical signal from an optical fiber and converts the optical signal into an electrical signal to receive data. [0003] Dense Wavelength Multiplexing (DWDM) technology is a core technology in the field of optical communication. Using Dense Wavelength Multiplexing (DWDM) t...

AI Technical Summary

Problems solved by technology

When the wavelength offset of the light is less than the channel width, this results in a smaller optical power received by the receiving optical device (ROSA); when the wavelength offset of the light is greater than or equal to the channel width, this results in a ) one-to-one corresponding to the source of the lost data of the receiving optical device (ROSA)

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