Title :
Threshold gain and threshold current analysis of circular grating DFB and DBR lasers
Author :
Wu, Chunmeng ; Makino, Toshihiko ; Najafi, S. Iraj ; Maciejko, Romain ; Svilans, Mikelis ; Glinski, Jan ; Fallahi, Mahmoud
Author_Institution :
Bell-Northern Res., Ottawa, Ont., Canada
fDate :
10/1/1993 12:00:00 AM
Abstract :
A TE-cylindrical wave threshold gain and threshold current analysis is presented for circular grating distributed feedback (CG-DFB) and circular grating distributed-Bragg-reflector (CG-DBR) lasers. Mode properties of CG-DFB/DBR lasers are discussed. It is found that the threshold gain, threshold current density and threshold current of CG-DBR lasers can be much lower than those of CG-DFB lasers
Keywords :
current density; diffraction gratings; distributed Bragg reflector lasers; distributed feedback lasers; laser modes; laser theory; semiconductor lasers; DBR lasers; DFB lasers; TE-cylindrical wave threshold gain; circular grating; distributed feedback; distributed-Bragg-reflector; laser diode theory; mode properties; threshold current analysis; threshold gain; Bragg gratings; Distributed Bragg reflectors; Distributed feedback devices; Laser feedback; Laser modes; Laser theory; Optical surface waves; Pump lasers; Surface emitting lasers; Threshold current;
Journal_Title :
Quantum Electronics, IEEE Journal of
