Optical Asymmetry Induced by PT-symmetric Nonlinear Fano Resonances

2013/10/09 by Fakhroddin Nazari, Nazari, F., Naomi Bender +9
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Mechanical and Optical Resonators #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Optics (physics.optics) #Photonic and Optical Devices

paper · pdf · doi:10.48550/arxiv.1310.2313

openalex publication_date 2013/10/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We introduce a new type of Fano resonances, realized in a photonic circuit which consists of two nonlinear PT-symmetric micro-resonators side-coupled to a waveguide, which have line-shape and resonance position that depends on the direction of the incident light. We utilize these features in order to induce asymmetric transport up to 47 dBs in the optical C-window. Our set-up requires low input power and does not compromise the power and frequency characteristics of the output signal.

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