Optomechanically induced nonreciprocity in a three-mode optomechanical system

TL;DR

This paper proposes a three-mode optomechanical system to achieve optical nonreciprocity driven by optomechanical nonlinearity, analyzing conditions for nonreciprocal response and discussing parameter effects for strong optical signals.

Contribution

It introduces a novel three-mode optomechanical setup demonstrating nonreciprocity based on optomechanical interactions, with analytical and numerical analysis of necessary conditions.

Findings

Nonreciprocity depends on optomechanical nonlinearity and specific parameter conditions.

Analytical demonstration of necessary conditions for nonreciprocal response.

Numerical analysis shows parameter effects on nonreciprocal behavior.

Abstract

We propose to create optical nonreciprocity in a three-mode optomechanical system comprising one mechanical and two optical modes, where the mechanical mode is coupled with only one of the optical modes. The optical nonreciprocal response of the system is based on the nonlinearity induced by the optomechanical interaction. However, nonlinearity is a necessary but not a sufficient condition for observing nonreciprocity. Another necessary condition for nonreciprocal response of the system to a classical driving field is demonstrated analytically. The effects of the parameters on the nonreciprocal response of the system are discussed numerically. The three-mode optomechanical system provides a platform to realize nonreciprocity for strong optical signal fields.