High dynamic range electro-optic dual-comb interrogation of optomechanical sensors

TL;DR

This paper presents a rapid, high dynamic range electro-optic dual-comb system for optomechanical sensor interrogation, enabling measurements at microsecond timescales over large ranges, with broad applicability beyond accelerometers.

Contribution

The authors introduce a novel interleaved, chirped electro-optic dual-comb technique for fast, high dynamic range sensing of cavity optomechanical devices, surpassing traditional methods.

Findings

Achieves measurement times as fast as 10 microseconds.

Demonstrates high dynamic range capabilities.

Applicable to various sensing modalities beyond accelerometry.

Abstract

An interleaved, chirped electro-optic dual comb system is demonstrated for rapid, high dynamic range measurements of cavity optomechanical sensors. This approach allows for the cavity displacements to be interrogated at measurement times as fast as 10 {\mu}s over ranges far larger than can be achieved with alternative methods. While the performance of this novel readout approach is evaluated with an optomechanical accelerometer, this method is applicable to a wide range of applications including temperature, pressure, and humidity sensing as well as acoustics and molecular spectroscopy.