Semiconductor laser light source module for realizing circular light spot and side surface pumping apparatus

Abstract

The invention discloses a semiconductor laser light source module for realizing a circular light spot and a side surface pumping apparatus. Multiple semiconductor lasers of the semiconductor laser light source module are annularly arranged, and the light output direction is parallel to the central axis of the annular structure; the space between every two adjacent semiconductor lasers is filled with a fan-shaped clamping block separately, so that the integrated end plane formed by the multiple semiconductor lasers and the fan-shaped clamping blocks can be a circular plane; and a locking apparatus is arranged on the periphery of the integrated part formed by the multiple semiconductor lasers and the fan-shaped clamping blocks for tightening all the semiconductor lasers to the centre to be fixed. The multiple semiconductor lasers are assembled through the fan-shaped clamping blocks to form the overall circular plane with light output surfaces in equilibrium distribution so as to directly output circular light spots; and the semiconductor laser light source module has a relatively small size and the annular structure disclosed in the scheme is relatively high in light spot uniformity.

Description

technical field [0001] The invention relates to a packaging structure of a semiconductor laser. Background technique [0002] As semiconductor lasers become more and more widely used in the application field, many circular spot applications are produced, while the traditional semiconductor laser stack is composed of multiple BAR bars vertically stacked along the fast axis direction, and the emitted laser spot Compared with the circular spot, the square spot generally uses a cylindrical lens, which requires high directionality and poor convenience for installation and adjustment, while the circular spot is conducive to spherical mirror shaping and quick lens switching. At present, there is no mature packaging method that can directly obtain a circular light spot with high power density. Generally, the square light spot generated by the array is shaped to obtain a circular light spot, including the following methods: [0003] 1. Cut and rearrange the square spot (transmissive...

AI Technical Summary

Problems solved by technology

[0005] Optical shaping is required to change the above square into a circle. The laser will lose energy when passing through the optical system, and the optical system occupies a long system volume, resulting in increased cost and large volume.

Images