H - Electricity – 01 – S
Patent
H - Electricity
01
S
H01S 5/026 (2006.01) G02B 6/42 (2006.01) H01S 5/14 (2006.01) H01S 5/34 (2006.01) H01S 5/00 (2006.01)
Patent
CA 2371504
A semiconductor laser device comprises 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 3dB bandwidth of the gain of the semiconductor laser or a spectrum full width at half maximum of the laser light of the semiconductor laser.
Fujita Takeshi
Hamada Yuuhiko
Hatta Tatsuo
Sakai Kiyohide
Shigihara Kimio
Kirby Eades Gale Baker
Mitsubishi Denki Kabushiki Kaisha
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