Title :
Gain compression and asymmetric gain due to the Bragg grating induced by the standing waves in Fabry-Perot lasers
Author :
Lassen, H.E. ; Olesen, H. ; Tromborg, B.
Author_Institution :
TFL Telecommun. Res. Lab., Horsholm, Denmark
Abstract :
The Bragg grating induced by the pattern of standing waves in a Fabry-Perot laser diode is shown to give a significant contribution to nonlinear gain. An analytic expression is derived for the contribution leading to a simple universal relation between the damping rate of relaxation oscillations, the square of the relaxation resonance frequency, and the carrier diffusion time. The effect of the standing wave grating cannot explain present data from various experiments, which indicated that there must be additional important contributions to nonlinear gain.<>
Keywords :
diffraction gratings; distributed feedback lasers; nonlinear optics; relaxation theory; semiconductor junction lasers; Bragg grating; DFB laser; Fabry-Perot lasers; analytic expression; asymmetric gain; carrier diffusion time; damping rate; gain compression; laser diode; nonlinear gain; relaxation oscillations; relaxation resonance frequency; simple universal relation; standing wave grating; standing waves; Bragg gratings; Charge carrier density; Damping; Fabry-Perot; Laser modes; Laser stability; Power generation; Resonance; Resonant frequency; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
