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IEEE Photonics Technology Letters / IEEE Transactions Photonics Technol Lett 21, 14 (2009) 1008-1010
Polarization Switching in Quantum-Dot Vertical-Cavity Surface-Emitting Lasers
Lukasz Olejniczak 1, 2, Marc Sciamanna 1, Hugo Thienpont 3, Krassimir Panajotov 2, Alex Mutig 4, Friedhelm Hopfer 4, Dieter Bimberg 4
(15/07/2009)

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.
1 :  Laboratoire Matériaux Optiques, Photonique et Systèmes (LMOPS)
CNRS : UMR7132 – Université Paul Verlaine - Metz – SUPELEC
2 :  Department of Applied Physics and Photonics (TW-TONA)
Vrije Universiteit Brussel (VUB)
3 :  Vrije Universiteit [Brussel] (VUB)
Vrije Universiteit Brussel
4 :  Institut für Festkörperphysik
Technische Universität Berlin
Physique/Physique/Optique

Sciences de l'ingénieur/Optique / photonique
Quantum dots – semiconductor lasers