Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer
广义相对论与量子宇宙学
2009-11-10 v2
摘要
A suspension-point interferometer (SPI) is an auxiliary interferometer for active vibration isolation, implemented at the suspension points of the mirrors of an interferometric gravitational wave detector. We constructed a prototype Fabry-Perot interferometer equipped with an SPI and observed vibration isolation in both the spectrum and transfer function. The noise spectrum of the main interferometer was reduced by 40 dB below 1 Hz. Transfer function measurements showed that the SPI also produced good vibration suppression above 1 Hz. These results indicate that SPI can improve both the sensitivity and the stability of the interferometer.
引用
@article{arxiv.gr-qc/0404048,
title = {Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer},
author = {Y. Aso and M. Ando and K. Kawabe and S. Otsuka and K. Tsubono},
journal= {arXiv preprint arXiv:gr-qc/0404048},
year = {2009}
}
备注
14 pages, 8 figures; added discussion; to be published in Physics Letters A