Vertical fiber coupling module with multiple semiconductor lasers

Abstract

The invention provides a vertical fiber coupling module with multiple semiconductor lasers. The vertical fiber coupling module comprises a package case and a plurality of fixed devices arranged at the top of the package case, wherein the fixed devices are provided with lens-fiber assemblies; the package case is internally provided with the semiconductor lasers coaxial with the lens-fiber assemblies, heat sinks for fixing the semiconductor lasers and a baseplate for fixing the heat sinks and electrically connected with the semiconductor lasers; the axes of the lens-fiber assemblies and the semiconductor lasers are vertical to a plane in which the baseplate is located; laser emitted by the semiconductor lasers enters upwards to the lens-fiber assemblies in the way of being vertical to the baseplate; and the laser emitting end of each semiconductor laser is provided with an optical lens for fast axis collimation. Compared with the prior art, the vertical fiber coupling module has the advantages of small volume, simple structure, good stability and convenience in adjustment and maintenance.

Description

technical field [0001] The invention relates to the fiber coupling technology of semiconductor lasers, in particular to a vertical fiber coupling module of multiple semiconductor lasers. Background technique [0002] In existing laser displays or other occasions that require high-power laser output, semiconductor laser (LD) arrays are usually used as light sources. The output light power of a single semiconductor laser is low, which often cannot meet the requirements of laser display for high-power laser light sources. In practical applications, the output light of multiple independent semiconductor lasers is often shaped and combined for output. In order to guide the laser light generated by LD into the optical fiber, it is necessary to package a single LD into a specific packaging module, so that the optical signal generated by it can be coupled to the optical fiber stably and reliably, and then multiple packaged LD modules are arranged in an array Arranged on a substrate...

AI Technical Summary

Problems solved by technology

[0012] In order to solve the problems of complex wiring, difficult debugging and high manufacturing cost in the prior art, the present invention provides a semiconductor laser module with simple structure, convenient adjustment and maintenance, and high arrangement density

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