Stabilization of a Fabry-Perot interferometer using a suspension-point interferometer

被引：18

作者：

Aso, Y ^{[1
]}

Ando, M ^{[1
]}

Kawabe, K ^{[1
]}

Otsuka, S ^{[1
]}

Tsubono, K ^{[1
]}

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo, Japan

来源：

PHYSICS LETTERS A | 2004年 / 327卷 / 01期

基金：

日本学术振兴会;

关键词：

gravitational wave; active vibration isolation; suspension point interferometer;

D O I：

10.1016/j.physleta.2004.04.066

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：1 / 8

页数：8

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