Title :
Polarisation characteristics of quantum well vertical cavity surface emitting lasers
Author :
Chang-Hasnain, Connie J. ; Harbison, J.P. ; Florez, L.T. ; Stoffel, N.G.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
The polarisation properties of quantum well vertical cavity surface emitting lasers are observed to be significantly different from their edge emitting counterparts. A near threshold, highly linearly polarised TEM00 mode whose direction varies randomly from one laser to the other is obtained. At higher currents, high order modes lase in a linear polarisation orthogonal to the fundamental mode. No polarisation selection rule is observed.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; indium compounds; laser cavity resonators; laser modes; light polarisation; semiconductor junction lasers; AlGaAs-GaAs-InGaAs; fundamental mode; highly linearly polarised TEM 00 mode; linear polarisation; near threshold laser modes; orthogonal direction laser mode; polarisation properties; quantum well vertical cavity surface emitting lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910105
