# Phase-dependent double optomechanically induced transparency in a hybrid optomechanical cavity system with coherently mechanical driving

## TL;DR

This paper introduces a method to generate tunable double optomechanically induced transparency in a hybrid cavity system, controlled by external mechanical driving, enabling adjustable transmission spectra and amplification.

## Contribution

It presents a novel scheme for phase-dependent double OMIT in a hybrid system with mechanical driving, allowing control over transmission properties and bandwidth.

## Key findings

- Control of probe transmission via external mechanical driving
- Transition from double-window to single-window transparency
- Generation of narrow-bandwidth, intensity-controllable spectra

## Abstract

We propose a scheme that can generate a tunable double optomechanically induced transparency (OMIT) in a hybrid optomechanical cavity system, in which the mechanical resonator of an optomechanical cavity is coupled to an additional mechanical resonator, and the additional mechanical resonator can be driven by a weak external coherently mechanical driving field. We show that both the intensity and the phase of the the external mechanical driving field can control the propagation of the probe field, including changing the transmission spectrum curve from a double-window to a single-window. Our study also provides an effective way to produce an intensity-controllable narrow-bandwidth transmission spectra, with the probe field modulated from excessive opacity to remarkable amplification.