Title :
DFB and DBR lasers emitting at 980 nm
Author :
Nichols, D.T. ; Lopata, J. ; Hobson, W.S. ; Sciortino, P.F., Jr. ; Dutta, N.K.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
Quantum well heterostructure lasers which operate in a single mode are of great importance in optical fiber based communication systems. Lasers which operate at 980 nm are particularly important pump sources for erbium-doped fiber amplifiers. Pump lasers which operate at 980 nm offer improved noise figures with respect to their 1480 nm counterparts, allowing for increased separation between repeaters. However, most of the work which has been carried out in distributed feedback (DFB) lasers has been in the GaAs/AlGaAs and InP/InGaAs material systems. In this paper, we present data on both distributed Bragg reflector (DBW) lasers and DFB lasers in the GaAs/AlGaAs/InGaAs system emitting at 980 nm
Keywords :
III-V semiconductors; aluminium compounds; distributed Bragg reflector lasers; distributed feedback lasers; gallium arsenide; indium compounds; laser modes; laser noise; optical communication equipment; optical pumping; optical repeaters; quantum well lasers; waveguide lasers; 980 nm; DBR lasers; DFB lasers; GaAs-AlGaAs-InGaAs; GaAs/AlGaAs; GaAs/AlGaAs/InGaAs system; InP/InGaAs material systems; distributed Bragg reflector; erbium-doped fiber amplifiers; noise figures; optical fiber based communication systems; pump lasers; pump sources; quantum well heterostructure lasers; repeater separation; single mode; Distributed Bragg reflectors; Distributed feedback devices; Erbium-doped fiber lasers; Gallium arsenide; Laser excitation; Laser feedback; Laser modes; Laser noise; Pump lasers; Quantum well lasers;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1993. LEOS '93 Conference Proceedings. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-1263-5
DOI :
10.1109/LEOS.1993.379334
