A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K
Abstract
We describe an apparatus for the implementation of hybrid optomechanical systems at 4 K. The platform is based on a high-finesse, micrometer-scale fiber Fabry-Perot cavity, which can be widely tuned using piezoelectric positioners. A mechanical resonator can be positioned within the cavity in the object-in-the-middle configuration by a second set of positioners. A high level of stability is achieved without sacrificing either performance or tunability, through the combination of a stiff mechanical design, passive vibration isolation, and an active Pound-Drever-Hall feedback lock incorporating a reconfigurable digital filter. The stability of the cavity length is demonstrated to be better than a few picometers over many hours both at room temperature and at 4 K.
Keywords
Cite
@article{arxiv.2205.03038,
title = {A tunable fiber Fabry-Perot cavity for hybrid optomechanics stabilized at 4 K},
author = {Thibaud Ruelle and David Jaeger and Francesco Fogliano and Floris Braakman and Martino Poggio},
journal= {arXiv preprint arXiv:2205.03038},
year = {2022}
}
Comments
10 pages, 6 figures, 1 table