Patent ID: 9450380
Filing Date: 2016-09-20
CPC Classification: H01S

Claim Text:
1. A semiconductor laser light source comprising: a semiconductor laser having an output end for outputting laser light; and a sub-mount to which said semiconductor laser is bonded; wherein said sub-mount includes a sub-mount substrate, an Au layer placed above said sub-mount substrate, a barrier layer which is placed on said Au layer and having a wall portion, and a generally planar solder layer bounded by edges and placed on said barrier layer in an area surrounded by said wall portion, and said semiconductor laser is bonded to said sub-mount through said solder layer with the end emitting the laser light generally parallel to the plane of the solder layer, the wall portion of said barrier layer extending upwardly with respect to the generally planar solder layer at an edge thereof remote from said output end of the semiconductor laser; the semiconductor laser being bonded to said sub-mount by said solder layer with its output end protruding over the edge of the solder layer, in a direction of output of said laser light.