Coupling method of light emitter and light emitter

Abstract

The embodiment of the invention provides a coupling method of a light emitter and the light emitter, and relates to the technical field of optical communication. According to the embodiment of the invention, the coupling process of the light emitter can be simplified, coupling time is saved, and production cost is reduced. The method comprises the following steps: fixing N lasers, an optical multiplexing assembly and a displacement prism at preset positions; when a first laser in the N lasers is in a light emitting state, coupling and fixing a first lens corresponding to the first laser; fixing the second lens at a preset position; when the first laser is in a light-emitting state, coupling and fixing the optical fiber adapter; and respectively coupling and fixing the N-1 first lenses respectively corresponding to the N-1 lasers according to the optical power received by the optical fiber adapter in the light emitting states of the N-1 lasers except the first laser. The invention is applied to the production and assembly of the light emitter.

Description

[0001] This application is a divisional application with an application date of November 01, 2018, an application number of 201811294549.0, and a patent name of a coupling method for an optical transmitter and an optical transmitter. technical field [0002] The invention relates to the technical field of optical communication, in particular to a coupling method of an optical transmitter and the optical transmitter. Background technique [0003] In the field of high-speed data communication, the technology of micro-optics assembly is more and more widely used. figure 1 Shown is a schematic diagram of the structure of a typical multiplexed optical transmitter. The optical transmitter mainly includes 4 lasers, 4 point-to-point lenses, 4 collimating lenses, an optical multiplexing component that synthesizes 4 channels of light into 1 channel of light, a focusing lens, and an optical fiber adapter. The 4 lasers can respectively emit Lasers of different wavelengths. The basic w...

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Problems solved by technology

[0004] With regard to the above-mentioned existing assembly method of the optical transmitter, the inventors of the present invention found that: in the prior art, after the laser, the optical multiplexing component and the collimator lens are fixed, the optical fiber adapter is coupled and fixed in an active way , so during the fixing process or in the later use, once a small deformation occurs, the optical power will drop, so there is a problem of difficult coupling

In addition, since the 4-way collimator lens is fixed first, and then the fiber optic adapter is welded, when the optical power of the product fails, the adapter needs to be removed and re-coupled, making it difficult to repair

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