Title :
Cavity and reflector design for vertical cavity surface emitting lasers
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
fDate :
2/1/1995 12:00:00 AM
Abstract :
The reflectivity of dielectric quarter-wave Bragg reflectors is analysed theoretically. The limiting reflectivity of lossy stacks determines minimum gain required for threshold in a vertical cavity, surface emitting laser (VCSEL). The effects of short cavities and resonant periodic gain (RPG) media are also discussed and useful mathematical expressions for device design are presented. Particular examples are made of AlAs/GaAs-based reflectors for 1.0 μm operation, although the concepts are applicable to any material system
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; laser accessories; laser cavity resonators; semiconductor lasers; surface emitting lasers; 1 mum; AlAs-GaAs; AlAs/GaAs-based reflectors; cavity design; device design; dielectric quarter-wave Bragg reflectors; lossy stacks; minimum gain; reflectivity; reflector design; resonant periodic gain; threshold; vertical cavity surface emitting lasers;
Journal_Title :
Optoelectronics, IEE Proceedings -
DOI :
10.1049/ip-opt:19951659
