Title :
Optimization of the operating point of a vertical-cavity surface-emitting laser
Author :
Wang, Guibin ; Yang, Q.
Author_Institution :
Dept. of Electr. & Syst. Eng., Connecticut Univ., Storrs, CT, USA
fDate :
8/1/1996 12:00:00 AM
Abstract :
The wall-plug efficiency of a vertical-cavity surface-emitting laser is investigated. The optimum current which produces a maximum wall-plug efficiency is derived when the mirror reflectivity is fixed and the series resistance and parasitic leakage current are taken as variable parameters. The results are compared with experimental data. The optimum reflectivity in terms of both output power and wall-plug efficiency is determined for both unstrained and strained quantum lasers with fixed supply current and series resistance as a parameter. Temperature is also considered as a variable
Keywords :
deformation; electrical resistivity; laser cavity resonators; laser mirrors; laser theory; leakage currents; optimisation; quantum well lasers; reflectivity; surface emitting lasers; fixed supply current; maximum wall-plug efficiency; mirror reflectivity; operating point; optimization; optimum current; optimum reflectivity; output power; parasitic leakage current; series resistance; strained quantum lasers; temperature; unstrained quantum lasers; variable parameters; vertical-cavity surface-emitting laser; wall-plug efficiency; Current supplies; Leakage current; Mirrors; Power generation; Power lasers; Reflectivity; Surface emitting lasers; Surface resistance; Temperature; Vertical cavity surface emitting lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
