Title :
A generalised rate equation model for moderately broad area laser diodes and its application to high-power lasers with selective quantum-well intermixing for improved beam quality
Author :
Avrutin, E.A. ; Russell, B.M. ; Yanson, D.
Author_Institution :
Dept. of Electron., Univ. of York, York
Abstract :
A numerical model in terms of rate equations for lateral mode amplitudes for analyzing static and dynamic properties of moderately broad area (tens of microns) laser diodes is proposed and used for modeling lasers with partially longitudinally intermixed areas. The limits to the improvement of near and far field and brightness by intermixing are analysed, and the roles of mode competition and shaping in the laser properties assessed.
Keywords :
chemical interdiffusion; laser beams; laser modes; laser theory; optical pulse shaping; quantum well lasers; semiconductor device models; semiconductor quantum wells; beam quality; brightness; dynamic property; far-field property; laser diode model; laser mode competition; laser shaping; near-field property; quantum well intermixing; rate equation model; static property; Brightness; Diode lasers; Equations; Laser applications; Laser beams; Laser modes; Numerical models; Optical design; Potential well; Quantum well lasers;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices, 2008. NUSOD '08. International Conference on
Conference_Location :
Nottingham
Print_ISBN :
978-1-4244-2307-1
DOI :
10.1109/NUSOD.2008.4668247
