Title :
Calculation of the mode suppression ratio in Fabry-Perot, DBR, and external cavity lasers
Author :
McIlroy, Paul W A
Author_Institution :
British Telecom Res. Lab., Ipswich, UK
fDate :
6/1/1990 12:00:00 AM
Abstract :
The mode-suppression ratio of Fabry-Perot, distributed Bragg reflector, and external-cavity lasers, both with and without gratings, is calculated using a linear amplifier mode. It is shown that the apparently anomalous behavior of long external cavity structures can be explained using this simple model, provided that the dependence of the spontaneous emission factor on longitudinal mode spacing is included. Practical expressions relating the static mode suppression ratio to laser device parameters are given
Keywords :
diffraction gratings; distributed Bragg reflector lasers; laser cavity resonators; laser modes; laser theory; Fabry-Perot; distributed Bragg reflector; external cavity lasers; gratings; laser mode theory; linear amplifier mode; longitudinal mode spacing; mode suppression ratio; spontaneous emission factor; static mode suppression ratio; Distributed Bragg reflectors; Fabry-Perot; Fiber lasers; Gratings; Laser modes; Laser theory; Optical amplifiers; Optical fibers; Semiconductor lasers; Spontaneous emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
