Optical Spring Tracking for Enhancing Quantum-Limited Interferometers
Quantum Physics
2024-08-30 v1 Optics
Abstract
Modern interferometers such as LIGO have achieved sensitivities limited by quantum noise, comprised of radiation pressure and shot noise. To mitigate this noise, a static system is employed that minimizes the quantum noise within the measurement band. However, since gravitational wave inspiral signals are a single frequency changing over time, only noise at the chirp frequency needs to be minimized. Here we demonstrate dynamically tracking a target signal using an optical spring, resulting in an increased signal to noise ratio (SNR). We report on a SNR increase by up to a factor of 40 when compared to a static configuration.
Keywords
Cite
@article{arxiv.2408.16171,
title = {Optical Spring Tracking for Enhancing Quantum-Limited Interferometers},
author = {Scott Aronson and Ronald Pagano and Torrey Cullen and Garrett D. Cole and Thomas Corbitt},
journal= {arXiv preprint arXiv:2408.16171},
year = {2024}
}