Title :
Semiconductor Raman laser pumped with a fundamental mode
Author :
Suto, K. ; Kimura, T. ; Nishizawa, J.
Author_Institution :
Dept. of Mater. Sci., Tohoku Univ., Sendai, Japan
fDate :
12/1/1992 12:00:00 AM
Abstract :
A semiconductor Raman laser with a waveguide in which a pump beam transmits with a fundamental mode, which can be used as an optical heterodyne demodulator, is discussed. As a result of the improved growth process and resonator construction, a threshold pump power as low as 300 mW has been achieved. The internal loss is discussed, and a tapered-waveguide semiconductor Raman laser is fabricated as a method to realise further lower pump power operation, and its lasing operation is demonstrated
Keywords :
Raman lasers; optical losses; optical pumping; optical waveguides; semiconductor lasers; 300 mW; fundamental mode; growth process; internal loss; lasing operation; optical heterodyne demodulator; pump beam; resonator construction; semiconductor Raman laser; tapered-waveguide; threshold pump power; waveguide;
Journal_Title :
Optoelectronics, IEE Proceedings J
