Wavelength division multiplexing module and light emitting device

Abstract

The invention discloses a wavelength division multiplexing module and a light emitting device, and relates to the technical field of optical communication. The wavelength division multiplexing modulecomprises a wavelength division multiplexer and an optoisolator, wherein the wavelength division multiplexer comprises an input end and an output end, and the optoisolator is arranged at the output end of the wavelength division multiplexer and used for transmitting optical signals output by the wavelength division multiplexer. The light emitting device comprises a luminescent device, an optical fiber adapter and a wavelength division multiplexing module; the luminescent device is connected with the input end of the wavelength division multiplexer in the wavelength division multiplexing module, and the optical fiber adapter is arranged at an outlet of the optoisolator in the wavelength division multiplexing module. By means of the wavelength division multiplexing module and the light emitting device, the interference of reflected light in a light path with the luminescent device, optical crosstalk caused to an output light path or other light emitting anomalies can be reduced.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a wavelength division multiplexing module and an optical transmitting device. Background technique [0002] With the continuous development of information technology, the way of transmitting information through cables is rapidly being replaced by optical fiber transmission systems. The optical fiber transmission system uses light waves as the carrier of signals, and transmits them between different communication nodes through optical fibers. Signal transmission is a process in which the sending end sends an optical signal through an optical module, and then the receiving end converts the received optical signal into an electrical signal. [0003] The optical module at the sending end usually includes an optical transmission sub-module. The optical transmission sub-module has the characteristics of high reliability, low cost, and miniaturization, and has gradually b...

AI Technical Summary

Problems solved by technology

Because, when the light output from the AWG chip is transmitted into the optical fiber through components such as fiber optic connectors, part of the light may be reflected by components such as fiber optic connectors, and the light-emitting device is more sensitive to reflected light. It itself causes interference, on the other hand, it will also cause optical crosstalk or other abnormal light output in the output optical path

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