Title :
Multi-diode cascade VCSEL with 130% differential quantum efficiency at CW room temperature operation
Author :
Knödl, T. ; Golling, M. ; Straub, A. ; Ebeling, K.J.
Author_Institution :
Dept. of Optoelectron., Ulm Univ., Germany
fDate :
1/4/2001 12:00:00 AM
Abstract :
The room temperature, continuous-wave (CW) operation of a fabricated multi-diode cascade vertical-cavity surface-emitting laser at 980 nm wavelength, with a differential quantum efficiency exceeding unity, is demonstrated for the first time. A maximum wallplug efficiency of 16%, is obtained at a driving current of three times the threshold
Keywords :
laser beams; laser cavity resonators; molecular beam epitaxial growth; optical fabrication; semiconductor lasers; surface emitting lasers; 130 percent; 16 percent; 298 K; 980 nm; CW room temperature operation; continuous-wave operation; differential quantum efficiency; driving current; fabrication; laser threshold; maximum wallplug efficiency; multi-diode cascade VCSEL; multi-diode cascade vertical-cavity surface-emitting laser; room temperature operation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010040
