Electrical birefringence tuning of VCSELs

Tobias Pusch; Markus Lindemann; Nils C. Gerhardt; Martin R. Hofmann; Rainer Michalzik

doi:10.1117/12.2295917

19 February 2018 Electrical birefringence tuning of VCSELs

Tobias Pusch, Markus Lindemann, Nils C. Gerhardt, Martin R. Hofmann, Rainer Michalzik

Proceedings Volume 10552, Vertical-Cavity Surface-Emitting Lasers XXII; 105520A (2018) https://doi.org/10.1117/12.2295917
Event: SPIE OPTO, 2018, San Francisco, California, United States

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.

Citation Download Citation

Tobias Pusch, Markus Lindemann, Nils C. Gerhardt, Martin R. Hofmann, and Rainer Michalzik "Electrical birefringence tuning of VCSELs", Proc. SPIE 10552, Vertical-Cavity Surface-Emitting Lasers XXII, 105520A (19 February 2018); https://doi.org/10.1117/12.2295917

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