Title :
Polarization Switching in Quantum-Dot Vertical-Cavity Surface-Emitting Lasers
Author :
Olejniczak, Lukasz ; Sciamanna, Marc ; Thienpont, Hugo ; Panajotov, Krassimir ; Mutig, Alex ; Hopfer, Friedhelm ; Bimberg, Dieter
Author_Institution :
Dept. of Appl. Phys. & Photonics, Vrije Univ. Brussel, Brussels, Belgium
fDate :
7/15/2009 12:00:00 AM
Abstract :
We demonstrate experimental evidence of polarization switching accompanied by polarization-mode hopping in quantum-dot vertical-cavity surface-emitting lasers. In our case, the polarization switching is associated with a change of linearly polarized light to elliptically polarized one, hence switching takes place between elliptically polarized states. Current-modulation measurements show that the polarization switching is of thermal origin.
Keywords :
electro-optical modulation; laser cavity resonators; laser modes; laser variables measurement; quantum dot lasers; surface emitting lasers; thermo-optical effects; current-modulation measurement; elliptically polarized light; laser thermal origin; polarization switching; polarization-mode hopping; quantum-dot vertical-cavity surface-emitting laser; single-mode laser; Quantum dots (QDs); semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2021954
