Polarization multiplexing in VCSEL-arrays

Roman Koerner; Sven Bader; Markus Herper; Tobias Kischkat-Grimm; Jenny Tempeler; Alexander van der Lee; Holger Moench; Armand Pruijmboom; Manuel Aviles Rodriguez; Ulrich Weichmann; Alexander Weigl

doi:10.1117/12.2647683

15 March 2023 Polarization multiplexing in VCSEL-arrays

Roman Koerner, Sven Bader, Markus Herper, Tobias Kischkat-Grimm, Jenny Tempeler, Alexander van der Lee, Holger Moench, Armand Pruijmboom, Manuel Aviles Rodriguez, Ulrich Weichmann, Alexander Weigl

Author Affiliations +

Proceedings Volume 12439, Vertical-Cavity Surface-Emitting Lasers XXVII; 1243902 (2023) https://doi.org/10.1117/12.2647683
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Advancements to our VCSEL technology platform now allow to dynamically switch between two orthogonal polarization states on a single VCSEL-array chip. Here stable and linearly polarized emission is combined without change to the VCSEL optical characteristics. This is rendered possible by 90°-rotated surface-gratings for each channel to realize polarization locking in one of the two polarization directions. Similar high polarization extinction ratios, thresholds and output powers are attained for each channel. Furthermore, electrical routing enables the flexible definition of illumination zones consisting of sub-arrays of VCSELs with the same polarization orientation. Time-division polarization multiplexing is thus enabled by addressing different zones of the VCSEL array for dynamic illumination concepts.

Conference Presentation

Citation Download Citation

Roman Koerner, Sven Bader, Markus Herper, Tobias Kischkat-Grimm, Jenny Tempeler, Alexander van der Lee, Holger Moench, Armand Pruijmboom, Manuel Aviles Rodriguez, Ulrich Weichmann, and Alexander Weigl "Polarization multiplexing in VCSEL-arrays", Proc. SPIE 12439, Vertical-Cavity Surface-Emitting Lasers XXVII, 1243902 (15 March 2023); https://doi.org/10.1117/12.2647683

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