Manipulation of birefringence in spin-VCSELs

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

doi:10.1117/12.2567336

20 August 2020 Manipulation of birefringence in spin-VCSELs

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

Proceedings Volume 11470, Spintronics XIII; 114702K (2020) https://doi.org/10.1117/12.2567336
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Abstract

Data centers play an important role in the ongoing demand for higher data rates. Here intensity-modulated vertical-cavity surface-emitting lasers (VCSELs) are the emitters of choice. The intensity dynamics resonance is currently limited to around 30 GHz. Using the much faster polarization dynamics in VCSELs can be a promising alternative. The polarization dynamics resonance is mainly determined by the frequency difference of the two orthogonal linearly polarized modes, which is defined by the birefringence. We have experimentally investigated mechanisms for birefringence manipulation from large-scale down to on-chip solutions. Polarization oscillations with frequencies in excess of 200 GHz have been observed.

Conference Presentation

Citation Download Citation

Tobias Pusch, Markus Lindemann, Natalie Jung, Nils C. Gerhardt, Martin R. Hofmann, and Rainer Michalzik "Manipulation of birefringence in spin-VCSELs", Proc. SPIE 11470, Spintronics XIII, 114702K (20 August 2020); https://doi.org/10.1117/12.2567336

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