Ultrabroadband nonreciprocal transverse energy flow of light in linear passive photonic circuits

Abstract

Using a technique, analogous to coherent population trapping in an atomic system, we propose schemes to create transverse light propagation violating left-right symmetry in a photonic circuit consisting of three coupled waveguides. The frequency windows for the symmetry breaking of the left-right energy flow span over 80 nm. Our proposed system only uses linear passive optical materials and is easy to integrate on a chip.

13 pages, 22 figures

References in corpus (4)

• Unidirectional Nonlinear PT-symmetric Optical Structures
• Optomechanically induced non-reciprocity in microring resonators
• On-chip optical diode based on silicon photonic crystal heterojunctions
• Photonic realization of the quantum Rabi model

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• Nonreciprocal transmission and fast-slow light effects in a cavity optomechanical system
• Propagation and perfect transmission in three-waveguide axially varying couplers
• All-optical transistor based on Rydberg atom-assisted opto-mechanical system