DocumentCode :
1118822
Title :
High-Power Continuous-Wave Single-Longitudinal-Mode Operation of an Optically Pumped DFB Laser at 
m
Author :
Xue, L. ; Brueck, S.R.J. ; Kaspi, R.
Author_Institution :
Univ. of New Mexico, Albuquerque
Volume :
20
Issue :
9
fYear :
2008
fDate :
5/1/2008 12:00:00 AM
Firstpage :
727
Lastpage :
729
Abstract :
High-power continuous-wave (CW) single-longitudinal-mode emission at 3.64 mum is obtained from an optically pumped distributed-feedback (DFB) laser. The Bragg stopband and two degenerate DFB modes are observed at certain pump powers. The laser incorporates 14 InAs-InGaSb-InAs type-II quantum wells imbedded in an InGaAsSb waveguide. The index-coupled 1-D grating is fabricated in the top clad using interference lithography and plasma etching. A 110-mum-wide stripe from a 1.9-mum CW laser provides both optical pumping and gain guiding. Record high output power of more than 560 mW per side is obtained at 80 K. The wavelength is tunable over a 6.8-nm range by varying the pump power from 1 to 8.1 W.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium compounds; indium compounds; optical pumping; quantum well lasers; Bragg stopband; InAs-InGaSb-InAs; InGaAsSb; continuous wave single longitudinal mode operation; optical pumping; optically pumped DFB laser; optically pumped distributed feedback laser; power 1 W to 8.1 W; quantum well; quantum-well lasers; semiconductor lasers; temperature 80 K; wavelength 1.9 nm; Gratings; Interference; Laser excitation; Laser modes; Optical pumping; Optical waveguides; Pump lasers; Quantum well lasers; Stimulated emission; Waveguide lasers; Distributed-feedback (DFB) lasers; optical pumping; quantum-well lasers; semiconductor lasers;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2008.921081
Filename :
4481171
Link To Document :
