Title :
Above-threshold mode discrimination in external reflector and phase-shifted DFB lasers
Author :
Rabinovich, William S. ; Feldman, Barry J.
Author_Institution :
US Naval Res. Lab., Washington, DC, USA
fDate :
8/1/1989 12:00:00 AM
Abstract :
The longitudinal mode discrimination above threshold in both distributed feedback lasers with one external reflector and those with phase-shifted grating structures is studied. By numerically solving a pair of coupled mode equations, it is shown that when these types of lasers have nonsaturable index coupling, they lose their mode discrimination at powers only a few times the saturation power of the medium due to the effects of spatial hole burning
Keywords :
diffraction gratings; distributed feedback lasers; laser modes; optical hole burning; semiconductor junction lasers; above threshold mode discrimination; coupled mode equations; external reflector; longitudinal mode discrimination; nonsaturable index coupling; phase-shifted DFB lasers; phase-shifted grating structures; saturation power; spatial hole burning; Distributed feedback devices; Equations; Frequency; Gratings; Laser feedback; Laser modes; Laser theory; Optical coupling; Optical feedback; Power lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
