Title :
Analytic description of the standing wave effect in DFB lasers
Author :
Pan, X. ; Olesen, H. ; Tromborg, B. ; Lassen, H.E.
Author_Institution :
TFL Telecommun. Res. Lab., Horsholm, Denmark
fDate :
6/1/1992 12:00:00 AM
Abstract :
The effect of standing waves along the laser cavity in DFB lasers is shown to be equivalent to a space-dependent nonlinear gain compression. A simple formalism is presented for analytical treatment of the effect, based on a Green´s function approach, and expressions derived for the small-signal modulation responses in the presence of standing waves. It is found that standing waves may make a significant contribution to the total nonlinear gain coefficient, but the modulation responses are still governed mainly by the spatial holeburning associated with the envelope of the intensity
Keywords :
distributed feedback lasers; laser cavity resonators; laser theory; optical hole burning; optical modulation; semiconductor junction lasers; DFB lasers; Green´s function approach; diode lasers; intensity envelope; laser cavity; small-signal modulation responses; space-dependent nonlinear gain compression; spatial holeburning; standing wave effect; total nonlinear gain coefficient;
Journal_Title :
Optoelectronics, IEE Proceedings J
