Optical isolation via 𝒫 𝒯 -symmetric nonlinear Fano resonances.
- Citation data:
Optics express, ISSN: 1094-4087, Vol: 22, Issue: 8, Page: 9574-84
- Publication Year:
- Repository URL:
- https://wesscholar.wesleyan.edu/physfacpub/73; http://stars.library.ucf.edu/facultybib2010/5882
- Physics and Astronomy; WAVE-GUIDE; DIODE; Optics
We show that Fano resonances created by two 𝒫 𝒯 -symmetric nonlinear micro-resonators coupled to a waveguide, 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 theoretical proposal requires low input power and does not compromise the power or frequency characteristics of the output signal.