Proof-of-principle demonstration of a Polarization-Circulation Speed Meter
Abstract
We present the first experimental implementation of a polarization-circulation speed meter. In our experiment, the interferometer was reduced to a single-cavity configuration with all mirrors fixed. A green-locking scheme was employed to stabilize the polarization circulation cavity, and a lock-acquisition procedure was demonstrated to realize speed-meter operation. The system was characterized by measuring the transfer function from a pseudo-displacement signal to the photodetector output, confirming that the device measures the speed of mirror motion. These results support the feasibility of polarization-circulation speed meters and suggest that the control scheme could be extended to more complex configurations, such as Michelson interferometers and suspended-mirror systems.
Keywords
Cite
@article{arxiv.2511.10220,
title = {Proof-of-principle demonstration of a Polarization-Circulation Speed Meter},
author = {Yohei Nishino and Tomotada Akutsu and Yoichi Aso and Munetake Otsuka and Luise Kranzhoff and Takayuki Tomaru},
journal= {arXiv preprint arXiv:2511.10220},
year = {2025}
}
Comments
8 figures, 2 tables, 12 pages