Title :
Filter characteristics of DBR amplifier with index and gain coupling
Author :
Willems, J. ; David, Klaus ; Morthier, Geert ; Baets, Roel
Author_Institution :
Lab. of Electromag. & Acoust., Gent Univ., Belgium
fDate :
5/9/1991 12:00:00 AM
Abstract :
DBR filters with a gain grating are examined for the first time. Simple formulas are derived for the peak reflection and good approximations for the 3dB bandwidth are given. The results show that the performance of the filter can be significantly improved by introducing gain coupling.
Keywords :
diffraction gratings; distributed Bragg reflector lasers; integrated optics; optical filters; 3dB bandwidth; DBR amplifier; DBR filters; gain coupling; gain grating; laser; peak reflection;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910521
