Title :
Beam propagation modelling of tapered waveguide lasers
Author :
Williams, K.A. ; White, I.H. ; Wonfor, A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
Abstract :
Summary form only given. This paper presents a dynamic beam propagation model which allows the optimised design of high power divergence tapered waveguide lasers. This has been achieved by extending a beam propagation model for semiconductor lasers to include the spatially resolved temperature profile and a temperature dependant gain. Design parameters such as the optimum facet reflectivity, taper angle and waveguide dimensions for low far field divergence and high continuous wave power can thereby be calculated.
Keywords :
laser theory; optical design techniques; optimisation; reflectivity; semiconductor device models; semiconductor lasers; waveguide lasers; beam propagation model; beam propagation modelling; design parameters; dynamic beam propagation model; high continuous wave power; high power divergence tapered waveguide lasers; low far field divergence; optimised design; optimum facet reflectivity; semiconductor lasers; spatially resolved temperature profile; taper angle; tapered waveguide lasers; temperature dependant gain; waveguide dimensions; Design optimization; Laser beams; Laser modes; Optical design; Optical propagation; Power lasers; Semiconductor lasers; Semiconductor waveguides; Temperature dependence; Waveguide lasers;
Conference_Titel :
Vertical-Cavity Lasers, Technologies for a Global Information Infrastructure, WDM Components Technology, Advanced Semiconductor Lasers and Applications, Gallium Nitride Materials, Processing, and Devi
Conference_Location :
Montreal, Que., Canada
Print_ISBN :
0-7803-3891-X
DOI :
10.1109/LEOSST.1997.619220
