Title :
Multiwavelength lasers based on semiconductor optical amplifiers
Author :
Sun, Junqiang ; Zhang, Ying ; Zhang, Xinliang
Author_Institution :
Dept. of Optoelectronic Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
6/1/2002 12:00:00 AM
Abstract :
Stable multiwavelength lasing is demonstrated with a novel laser, in which a semiconductor optical amplifier offers optical gain and cascaded sampled fiber gratings serve as a comb filter. Five lasing lines are obtained with a fixed wavelength spacing of 0.8 nm. Optical power fluctuations among the lasing lines are improved by adjusting the reflectivity profile through the cascade of two sampled gratings.
Keywords :
Bragg gratings; comb filters; laser stability; laser transitions; optical transmitters; reflectivity; semiconductor optical amplifiers; wavelength division multiplexing; DWDM transmitter; cascaded sampled fiber gratings; comb filter; dense wavelength-division multiplexing; equivalent reflectors; fixed wavelength spacing; lasing lines; multiwavelength lasers; optical gain; optical power fluctuations; reflectivity profile; semiconductor optical amplifiers; stable five-wavelength lasing; stable multiwavelength lasing; uniform Bragg gratings; Fiber gratings; Fiber lasers; Fluctuations; Laser stability; Optical fiber filters; Optical filters; Quantum cascade lasers; Semiconductor lasers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.1003081
