Title :
Variation of kink power with cavity length in weakly index guided semiconductor lasers
Author :
van der Poel, C.J. ; Schemmann, M.F.C. ; Acket, G.A.
Author_Institution :
Philips Optoelectron. Centrer, Eindhoven, Netherlands
Abstract :
A periodic dependence of kink power on laser length is observed and explained. Weakly-index guided high power stripe lasers in the AlGaAs, InGaAlP and InGaAlAs material systems are studied and periods of 100 to 350 μm are found. The observations indicate that phase locked fundamental and first order modes exist at certain laser lengths. This new model fully explains the oscillatory behaviour of the kink power and the correlated changes in lateral far field distributions at the front and rear mirror facets
Keywords :
laser cavity resonators; laser mirrors; laser modes; laser theory; optical correlation; quantum well lasers; refractive index; semiconductor device models; waveguide lasers; 100 to 350 mum; AlGaAs; InGaAlAs; InGaAlP; cavity length; first order modes; front mirror facets; kink power; laser length; laser lengths; lateral far field distributions; oscillatory behaviour; periodic dependence; phase locked fundamental laser modes; rear mirror facets; weakly index guided semiconductor lasers; weakly-index guided high power stripe lasers; Diffraction; Laser mode locking; Laser modes; Mirrors; Optical materials; Power generation; Power lasers; Power system modeling; Semiconductor lasers; Waveguide lasers;
Conference_Titel :
Semiconductor Laser Conference, 1994., 14th IEEE International
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-1754-8
DOI :
10.1109/ISLC.1994.519353
