| 摘要 |
PROBLEM TO BE SOLVED: To provide a semiconductor laser device capable of restraining a semiconductor laser element from getting large in size, and capable of enhancing productivity while restraining a light-emitting part interval from getting long. SOLUTION: The three-wavelength semiconductor laser device 1 includes a blue-violet semiconductor laser element 10, a two-wavelength semiconductor laser element 20, and a submount 2. A side face 21c arranged to face the blue-violet semiconductor laser element 10, of a semiconductor substrate 21 in the two-wavelength semiconductor laser element 20, is formed to make long a distance to the blue-violet semiconductor laser element 10, as it goes away from the submount 2. COPYRIGHT: (C)2011,JPO&INPIT
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