Reflective receiver protectors with non-Hermitian CT-symmetric spectral protection of nonlinear defect modes

Tsampikos Kottos; Ulrich Kuhl; Fabrice Mortessagne; Do Hyeok Jeon; Mattis Reisner; Henning Schomerus; Carsten Schindler

doi:10.1117/12.2593260

1 August 2021 Reflective receiver protectors with non-Hermitian CT-symmetric spectral protection of nonlinear defect modes

Tsampikos Kottos, Ulrich Kuhl, Fabrice Mortessagne, Do Hyeok Jeon, Mattis Reisner, Henning Schomerus, Carsten Schindler

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Proceedings Volume 11796, Active Photonic Platforms XIII; 1179612 (2021) https://doi.org/10.1117/12.2593260
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Reciever protectors (RP) shield sensitive electronics from high-power electromagnetic signals that might damage them. Typical RP schemes range from simple fusing and PIN diodes to superconducting circuits and plasma cells -- each having a variety of drawbacks ranging from unacceptable system downtime and self-destruction to significant insertion losses and power consumption. We introduce a class of non-Hermitian photonic receiver protectors that are self-protected from overheating effects induced via high-level incident electromagnetic radiation, due to a self-regulating impedance mismatching mechanism that turns them into near-perfect reflectors. At low-power incident signals, these receiver protectors demonstrate high transmittance via a nonlinear defect mode. In this limit, they also demonstrate a high tolerance to fabrication imperfections due to topological protection, imposed via a charge-conjugation symmetry.

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Tsampikos Kottos, Ulrich Kuhl, Fabrice Mortessagne, Do Hyeok Jeon, Mattis Reisner, Henning Schomerus, and Carsten Schindler "Reflective receiver protectors with non-Hermitian CT-symmetric spectral protection of nonlinear defect modes", Proc. SPIE 11796, Active Photonic Platforms XIII, 1179612 (1 August 2021); https://doi.org/10.1117/12.2593260

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KEYWORDS

Reflectivity

Receivers

Nonlinear optics

PIN photodiodes

Plasma

Reflectors

Signal attenuation

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