On the optical nonreciprocity and slow light propagation in coupled spinning optomechanical resonators

TL;DR

This paper investigates how spinning optomechanical resonators can be used to control light transmission, enabling nonreciprocal and slow light effects for advanced quantum communication applications.

Contribution

It provides a steady-state analysis of coupled spinning resonators, revealing how spin direction influences optical nonreciprocity and delay effects.

Findings

Changing spinning directions affects nonreciprocal transmission.

Optical Sagnac effect enhances slow light propagation.

Analysis applicable to multiple resonator configurations.

Abstract

We study the optical transmission characteristics of pump-probe driven spinning optomechanical ring resonators coupled in a series configuration. After performing the steady-state analysis valid for an arbitrary number of resonators, as an example, we discuss the two-resonator problem in detail. Therein, we focus on how changing the optical Sagnac effect due to same or opposite spinning directions of resonators can lead to enhanced, non-reciprocal and delayed probe light transmission. This work can help in devising spin degree of freedom based novel devices of manipulating light propagation in quantum networks and quantum communication technologies.