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Polarization Switching in Quantum-Dot Vertical-Cavity Surface-Emitting Lasers

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7 Author(s)
Olejniczak, L. ; Dept. of Appl. Phys. & Photonics, Vrije Univ. Brussel, Brussels, Belgium ; Sciamanna, M. ; Thienpont, H. ; Panajotov, K.
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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.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 14 )