Patent ID: 7508854
Filing Date: 2009-03-24
Classification: H01S

Abstract:
1. A semiconductor laser device comprising: A base portion having a horizontal top surface; A heat sink portion that has a vertical element mount surface and is located above the top surface of the base portion; A semiconductor laser element that is fixed to the element mount surface and A depression that is formed in the top surface of the base portion located immediately below the semiconductor laser element so as to receive part of the semiconductor laser element disposed therein, Wherein the heat sink portion is fixed to the base portion in such a way that the element mount surface is located inward of an inner side surface of the depression and that a portion of a bottom surface of the heat sink portion does not contact with the base portion, and wherein the semiconductor laser element is fixed to the heat sink portion via a submount, part of which is disposed in the depression, and the top surface of the submount is disposed below the top surface of the semiconductor laser element and the bottom surface of the submount is disposed below the bottom surface of the semiconductor laser element.