Title :
Modeling passive mode-locking in vertical-external-cavity surface-emitting semiconductor lasers
Author :
Mulet, Josep ; Balle, Salvador
Author_Institution :
Inst. Mediterrani d Estudis Avan ats, CSIC, Palma de Mallorca, Spain
Abstract :
In this paper, a novel theoretical description of passive mode-locking in electrically-driven VECSELs is developed. Results reveal that the onset of mode locking depends on the interplay of three different effects namely, contrast in saturation fluences, spot area ratio, and balance between intensities at the active medium and absorber. Thus, the standing wave effect in the vertical cavities can be used to improve the mode-locking performance. In order to favor mode locking, emitter and absorber have to be tightly coupled in order to saturate the latter in their mutual dynamical interplay.
Keywords :
laser cavity resonators; laser mode locking; optical saturation; semiconductor device models; semiconductor lasers; surface emitting lasers; absorber; active medium; electrically-driven VECSEL; intensity balance; mode-locking model; mutual dynamical interplay; passive mode-locking; saturation fluence contrast; semiconductor lasers; spot area ratio; standing wave effect; vertical-external-cavity surface-emitting lasers; Distributed Bragg reflectors; Frequency; Laser mode locking; Nonlinear optics; Optical pulses; Optical saturation; Semiconductor lasers; Stimulated emission; Surface emitting lasers; Vertical cavity surface emitting lasers;
Conference_Titel :
Quantum Electronics Conference, 2005. EQEC '05. European
Print_ISBN :
0-7803-8973-5
DOI :
10.1109/EQEC.2005.1567181