Patent ID: 8121163
Filing Date: 2012-02-21
Classification: H01L,H01S

Abstract:
1. A semiconductor laser diode apparatus comprising: a semiconductor laser diode element having warping along at least either a first direction in which a cavity extends or a second direction intersecting with said first direction; and a base on which a convex side of the warping of said semiconductor laser diode element is fixed through a fusion layer, wherein a distance between said base and a first end of said semiconductor laser diode element in said first direction is smaller than a distance between said base and a second end of said semiconductor laser diode element in said first direction, and said first end is a light-emitting end of said semiconductor laser diode element, and said second end is a light reflective end of said semiconductor laser diode element, and a metal underlayer is formed between said base and said fusion layer, and the metal underlayer is formed on a region closer to said first end than said second end, and no metal underlayer is formed on a region closer to said second end than said first end.