Oxidation stress induced birefringence in vertical cavity surface emitting lasers

N. Ledentsov; L. Chorchos; O. Makarov; J. -R. Kropp; V. Shchukin; V. P. Kalosha; Urs Hecht; P. Kurth; F. Gerfers; J. P. Turkiewicz; N. N. Ledentsov

doi:10.1117/12.2542972

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24 February 2020 Oxidation stress induced birefringence in vertical cavity surface emitting lasers

N. Ledentsov, L. Chorchos, O. Makarov, J. -R. Kropp, V. Shchukin, V. P. Kalosha, Urs Hecht, P. Kurth, F. Gerfers, J. P. Turkiewicz, N. N. Ledentsov

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Proceedings Volume 11300, Vertical-Cavity Surface-Emitting Lasers XXIV; 113000K (2020) https://doi.org/10.1117/12.2542972
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

We report high-frequency polarization self‐modulation (PSM) in high speed vertical-cavity surface emitting lasers (VCSELs) connected to the stress-induced birefringence in oxide-confined aperture VCSELs. Polarization oscillations up to 45 GHz were captured. We analyze the far and the near field of the device and show how the fiber-coupling conditions induce optical feedback, affect emission properties of the device and influence the polarization switching phenomenon. In conditions where the PSM was suppressed, we demonstrate NRZ high-speed multi-mode fiber data transmission up to 90 Gbit/s.

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N. Ledentsov, L. Chorchos, O. Makarov, J. -R. Kropp, V. Shchukin, V. P. Kalosha, Urs Hecht, P. Kurth, F. Gerfers, J. P. Turkiewicz, and N. N. Ledentsov "Oxidation stress induced birefringence in vertical cavity surface emitting lasers", Proc. SPIE 11300, Vertical-Cavity Surface-Emitting Lasers XXIV, 113000K (24 February 2020); https://doi.org/10.1117/12.2542972

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