Light-current characterization of dual-wavelength VCSELs
The purpose of this paper is to present a detailed characterization of a dual-wavelength VCSEL - the BiVCSEL. This device consists of two active optical cavities, which share a coupling mirror and can be independently electrically pumped. We present the output powers for the two emitted wavelengths (short - lambda(S), long - lambda(L)) versus the currents in the two cavities (I-TOP, I-BOT). These (lambda(S), lambda(L))-(I-TOP, I-BOT) maps identify the different regimes of operation of the BiVCSEL: emission at only one wavelength (either short or long) and dual-wavelength emission, each domain being delimitated by the threshold curves. These curves are passing through a single point, which identify the dual-emission threshold (I-TOP(th), I-BOT(th)). The apparition of a parasitic lasing mode due to the oxide apertures will be also presented as well as the competition between this mode and the designed lasing modes of the structure.
2002
Proceedings Of The Society Of Photo-Optical Instrumentation Engineers (Spie); 4649
87
95
REVIEWED
Event name | Event place | Event date |
SAN JOSE, CA | Jan 23-24, 2002 | |