| 发明名称 |
Wavelength monitor and semiconductor laser device |
| 摘要 |
A wavelength monitor comprises a cylindrical lens configured to allow a laser beam emitted from a semiconductor laser to pass therethrough, first and second photodetectors configured to receive the laser beam through the cylindrical lens, and a wavelength filter disposed in an optical path between the semiconductor laser and the first photodetector.
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| 申请公布号 |
US6801553(B2) |
申请公布日期 |
2004.10.05 |
| 申请号 |
US20010988662 |
申请日期 |
2001.11.20 |
| 申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
IMAKI MASAO;HIRANO YOSHIHITO;SATO MAKOTO;MASUDA KENJI;ADACHI AKIHIRO;NISHIMURA YASUNORI;TAKAGI SHINICHI |
| 分类号 |
H01S5/0683;H01S5/00;H01S5/022;H01S5/024;H01S5/0687;(IPC1-7):H01S3/13 |
主分类号 |
H01S5/0683 |
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