发明名称 |
Semiconductor laser device and optical fiber amplifier |
摘要 |
A semiconductor laser device includes an optical fiber having an optical fiber grating formed therein, a semiconductor laser having an active layer with a single quantum well, for emitting laser light, and a coupling optical system for coupling the laser light emitted out of the semiconductor laser into the optical fiber. The coupling optical system can include a narrow-band filter for adjusting an incident angle of the laser light emitted out of the semiconductor laser. The optical fiber grating can have a reflection bandwidth wider than or substantially equal to a 3 dB bandwidth of the gain of the semiconductor laser or a spectrum full width at half maximum of the laser light of the semiconductor laser.
|
申请公布号 |
US2005007657(A1) |
申请公布日期 |
2005.01.13 |
申请号 |
US20040914134 |
申请日期 |
2004.08.10 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
SAKAI KIYOHIDE;HAMADA YUUHIKO;FUJITA TAKESHI;YOSHIDA YASUAKI;SHIGIHARA KIMIO;HATTA TATSUO |
分类号 |
H01S3/10;H01S3/094;H01S3/0941;H01S5/00;H01S5/022;H01S5/14;H01S5/34;(IPC1-7):H01S3/00 |
主分类号 |
H01S3/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|