Title :
Reduced effective linewidth enhancement factor alpha eff of complex-coupled DFB lasers with absorptive gratings
Author :
Amann, M.-C. ; Borchert, Bernd
fDate :
7/22/1993 12:00:00 AM
Abstract :
An extended model for the calculation of alpha eff, is presented including for the first time the carrier dynamics in the absorptive grating. It is shown that for comparable carrier lifetime in the absorptive and active regions a significant reduction of alpha eff, may be achieved by the antiphase configuration of the complex coupling coefficient.
Keywords :
carrier lifetime; diffraction gratings; distributed feedback lasers; laser theory; semiconductor device models; semiconductor lasers; spectral line breadth; absorptive gratings; antiphase configuration; carrier dynamics; carrier lifetime; complex coupling coefficient; complex-coupled DFB lasers; effective linewidth enhancement factor; extended model;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19930916
