Title :
Root locus method for predicting the stability of laser diodes with optical feedback
Author :
Pierce, I. ; Rees, Paul ; Spencer, P.S. ; Shore, K.A.
Author_Institution :
Sch. of Inf., Univ. of Wales, Bangor, UK
fDate :
6/8/2000 12:00:00 AM
Abstract :
Optical feedback from an external reflector into a laser diode can render the output of the diode unstable. The critical feedback strength for a laser diode with external optical feedback is calculated using a computationally efficient root locus technique. Simulations reveal that for certain shorter feedback path lengths the critical feedback strength is elevated above the long path asymptotic value, leading to islands of increased stability
Keywords :
laser beams; laser feedback; laser mirrors; laser stability; semiconductor lasers; computationally efficient root locus technique; critical feedback strength; diode laser output; external optical feedback; external reflector; feedback path lengths; laser diode; laser diodes; long path asymptotic value; optical feedback; root locus method; simulations; stability; unstable diode laser;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000790
