Title :
Calculation of combined lateral and longitudinal spatial hole burning in λ/4 shifted DFB lasers
Author :
Wunsche, H.J. ; Bandelow, U. ; Wenzel, H.
Author_Institution :
Dept. of Phys.-IOS, Humboldt Univ., Berlin, Germany
fDate :
6/1/1993 12:00:00 AM
Abstract :
A quasi-3-D semiconductor laser model that takes into account both longitudinal and lateral spatial hole burning is presented and used to perform calculations of the longitudinal side-mode-suppression ratio, the lateral side-mode kink power, and the linewidth of devices with coupling up to κL=6. Detailed results on the effects of inhomogeneous injection, wavelength detuning, phase shift position, and optical losses on these quantities are discussed and used to draw conclusions on the regions of stable single-mode operation
Keywords :
distributed feedback lasers; laser modes; laser theory; laser tuning; modelling; optical hole burning; optical losses; semiconductor lasers; calculations; inhomogeneous injection; lateral side-mode kink power; lateral spatial hole burning; linewidth; longitudinal side-mode-suppression ratio; longitudinal spatial hole burning; optical losses; phase shift position; quarter wave shifted distributed feedback lasers; quasi three dimensional semiconductor laser model; stable single-mode operation; wavelength detuning; Charge carrier density; Equations; Frequency; Laser modes; Optical coupling; Optical refraction; Optical variables control; Power lasers; Semiconductor lasers; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
