Semiconductor laser module

Provided is a semiconductor laser module capable of increasing output of an optical fiber laser. The semiconductor laser module comprises: a member to be mounted having a surface to be mounted; a plurality of semiconductor laser elements arranged on the surface to be mounted of the member to be mounted; a lens that collimates a laser beam emitted from the semiconductor laser elements; a condensinglens that condenses the laser beam; and an optical fiber with which the condensed laser beam is optically coupled. The semiconductor laser module further comprises an aperture that limits a beam of the laser beam in a slow axis direction provided between the condensing lens that condenses the laser beam and the lens that collimates the laser beam emitted from the semiconductor laser elements. 本发明提供一种能够实现光纤激光器的高输出化的半导体激光模块。半导体激光模块具备：被安装构件，具有被安装面；多个半导体激光元件，设置在所述被安装构件的所述被安装面上；透镜，对于从所述半导体激光元件射出的激光进行准直；聚光透镜，对所述激光进行聚光；及光纤，供聚光后的所述激光进行光耦合，所述半导体激光模块还在对所述激光进行聚光的聚光透镜与对从所述半导体激光元件射出的激光进行准直的透镜之间具备限制所述激光的慢速轴方向的光的光阑。