Patent ID: 7724798
Filing Date: 2010-05-25
Classification: H01L,H01S

Abstract:
1. A two-beam semiconductor laser device comprising: a two-beam semiconductor element having first and second semiconductor laser elements that can be driven independently and that are formed integrally on a substrate; and a submount having, mounted on a front part thereof, the two-beam semiconductor laser element with a light-emitting face thereof directed forward and having first and second electrode pads connected to electrodes of the first and second semiconductor laser elements by being kept in contact therewith, wherein no photodetector is provided on the submount, wherein the first and second electrode pads are formed to extend farther behind the two-beam semiconductor laser element, and are wire-bonded behind the two-beam semiconductor laser element at positions directly behind the two-beam semiconductor laser element with respect to a laser-light-emitting direction of the two-beam semiconductor element, and wherein a lateral width of the submount along the front part of the submount is 400 μm or more but 700 μm or less.