Observation of an Optical Spring in a Robustly Controlled Signal-Recycled Michelson Interferometer
Optics
2025-09-16 v2
Abstract
We present, to the best of our knowledge, the first demonstration of an optical spring in a signal-recycled Michelson interferometer without arm cavities. The setup utilizes multiple laser fields to achieve stable and precisely controllable detuning and incorporates a compliant suspension system comprising two double-spiral springs. These results support optical spring-enhanced interferometers with intracavity amplification, offering a promising avenue for improving high-frequency sensitivity in future gravitational-wave detectors.
Keywords
Cite
@article{arxiv.2504.18374,
title = {Observation of an Optical Spring in a Robustly Controlled Signal-Recycled Michelson Interferometer},
author = {Kaido Suzuki and Ken-ichi Harada and Ryo Iden and Sotatsu Otabe and Kentaro Komori and Yuta Michimura and Kentaro Somiya},
journal= {arXiv preprint arXiv:2504.18374},
year = {2025}
}
Comments
14 pages, 8 figures