SEMICONDUCTOR LASER MODULE

摘要

A semiconductor laser module 1 is mainly composed of a package 3, a semiconductor laser 5, lenses 7, 9, 13, reflecting mirrors 11, an optical fiber 15, and the like. The package 3 is composed of a bottom part and side surfaces 19a, 19b. The side surfaces 19a, 19b stand erect approximately vertical to the bottom part of the package. In the semiconductor laser module 1, a plurality of semiconductor laser installation surfaces 17 are formed in a step-like shape. On each semiconductor laser installation surface 17, a semiconductor laser 5 is installed. A lens 7 is arranged at the anterior (in the emission direction) of the semiconductor laser 5. Moreover, a lens 9 is arranged further to the anterior. A reflecting mirror 11 is fixed to the side surface 19a, which is provided facing the emission direction of the semiconductor laser 5.

主权项

1. A semiconductor laser module comprising:
a plurality of semiconductor lasers; a plurality of reflecting mirrors, which each reflect laser lights emitted from the plurality of semiconductor lasers; a condensing lens, which concentrates the laser lights reflected by the plurality of reflecting mirrors and couples them to an optical fiber; wherein the plurality of semiconductor lasers are each arranged on semiconductor laser installation surfaces of different heights; and the plurality of reflecting mirrors are each joined at different heights on an erect surface, which is approximately vertical to the semiconductor laser installation surface.