Title :
Complete polarisation control of GaAs gain-guided top-surface emitting vertical cavity lasers
Author :
Dowd, P. ; Heard, P.J. ; Nicholson, J.A. ; Raddatz, Lutz ; White, Ian H. ; Penty, Richard V. ; Allen, G.C. ; Corzine, S.W. ; Tan, M.R.T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ.
fDate :
7/17/1997 12:00:00 AM
Abstract :
Complete polarisation control is demonstrated in circular gain-guided top-surface emitting vertical cavity lasers by etching a line near the cavity aperture. The etch orientation determines the dominant polarisation state of emission by modifying the spontaneous emission coupling into each polarisation state. This is sufficient to pin the polarisation in monomode and multimode devices
Keywords :
III-V semiconductors; etching; gallium arsenide; laser cavity resonators; light polarisation; semiconductor lasers; surface emitting lasers; GaAs; GaAs gain-guided VCSEL; circular type; dominant polarisation state; etch orientation; etching; polarisation control; spontaneous emission modification; top-surface emitting lasers; vertical cavity SEL;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970894
