Generating quadrature squeezed light with dissipative optomechanical coupling

TL;DR

This paper theoretically demonstrates that dissipative optomechanical coupling can produce significant quadrature squeezing, comparable to dispersive coupling, and explores combined effects and temperature influences.

Contribution

It introduces a theoretical analysis of squeezing in dissipative optomechanical systems, including combined coupling effects and optimal measurement parameters.

Findings

Dissipative coupling can produce strong squeezing on resonance.

Combined dispersive and dissipative couplings enhance squeezing.

Temperature negatively impacts the squeezing quality.

Abstract

The recent demonstration of cooling of a macroscopic silicon nitride membrane based on dissipative coupling makes dissipatively coupled optomechanical systems as promising candidates for squeezing. We theoretically show that such a system in a cavity on resonance can yield good squeezing which is comparable to that produced by dispersive coupling. We also report the squeezing resulting from the combined effects of dispersive and dissipative couplings and thus the device can be operated in one regime or the other. We derive the maximal frequency and quadrature angles to observe squeezing for given optomechanical coupling strengths. We also discuss the effects of temperature on squeezing.