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Proceedings Paper

Electrical birefringence tuning of VCSELs
Author(s): Tobias Pusch; Markus Lindemann; Nils C. Gerhardt; Martin R. Hofmann; Rainer Michalzik
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Paper Abstract

The birefringence splitting B, which is the frequency difference between the two fundamental linear polarization modes in vertical-cavity surface-emitting lasers (VCSELs), is the key parameter determining the polarization dynamics of spin-VCSELs that can be much faster than the intensity dynamics. For easy handling and control, electrical tuning of B is favored. This was realized in an integrated chip by thermally induced strain via asymmetric heating with a birefringence tuning range of 45 GHz. In this paper we present our work on VCSEL structures mounted on piezoelectric transducers for strain generation. Furthermore we show a combination of both techniques, namely VCSELs with piezo-thermal birefringence tunability.

Paper Details

Date Published: 19 February 2018
PDF: 6 pages
Proc. SPIE 10552, Vertical-Cavity Surface-Emitting Lasers XXII, 105520A (19 February 2018); doi: 10.1117/12.2295917
Show Author Affiliations
Tobias Pusch, Univ. Ulm (Germany)
Markus Lindemann, Ruhr-Univ. Bochum (Germany)
Nils C. Gerhardt, Ruhr-Univ. Bochum (Germany)
Martin R. Hofmann, Ruhr-Univ. Bochum (Germany)
Rainer Michalzik, Univ. Ulm (Germany)

Published in SPIE Proceedings Vol. 10552:
Vertical-Cavity Surface-Emitting Lasers XXII
Chun Lei; Kent D. Choquette, Editor(s)

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