Title :
Self-consistent analysis of side-mode suppression in gain-coupled DFB semiconductor lasers
Author :
Chen, Jianyao ; Maciejko, Roman ; Makino, Toshihiko
Author_Institution :
Integrated Opt. Lab., Ecole Polytech., Montreal, Que., Canada
fDate :
1/1/1998 12:00:00 AM
Abstract :
Based on a set of spatially dependent multimode rate equations derived from Maxwell´s equations, a self-consistent analysis of gain-coupled distributed feedback (DFB) lasers is developed. By introducing the modal net gain into the coupled wave equations, we also obtain a closed form formula of the side-mode suppression ratio (SMSR) for DFB lasers. It is shown that, associated with the distributed feedback, the longitudinal spatial hole burning, and the nonlinear gain compression effects, gain coupling produces significant effects on the SMSR of DFB lasers
Keywords :
Maxwell equations; distributed feedback lasers; laser feedback; laser modes; laser stability; laser theory; optical couplers; optical hole burning; optical pulse compression; semiconductor lasers; transient analysis; DFB lasers; Maxwell´s equations; closed form formula; coupled wave equations; distributed feedback; gain coupling; gain-coupled DFB semiconductor lasers; gain-coupled distributed feedback lasers; longitudinal spatial hole burning; modal net gain; nonlinear gain compression effects; self-consistent analysis; side-mode suppression; side-mode suppression ratio; spatially dependent multimode rate equations; Distributed feedback devices; Laser feedback; Laser modes; Laser noise; Laser stability; Nonlinear optics; Optical coupling; Optical feedback; Partial differential equations; Semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
