| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-wavelength semiconductor laser device, whose chip size is small, optical design is easy, and manufacturing is easy. <P>SOLUTION: A three-wavelength semiconductor laser device is constituted through wavelength conversion elements 109 and 111 or a photoexcitation laser diode, while comprising a blue-violet laser diode 107 as a light-emitting source. <P>COPYRIGHT: (C)2013,JPO&INPIT |
