Arm-length stabilisation for interferometric gravitational-wave detectors using frequency-doubled auxiliary lasers

被引：28

作者：

Mullavey, Adam J. ^{[1
]}

Slagmolen, Bram J. J. ^{[1
]}

Miller, John ^{[1
]}

Evans, Matthew ^{[2
]}

Fritschel, Peter ^{[2
]}

Sigg, Daniel ^{[3
]}

Waldman, Sam J. ^{[2
]}

Shaddock, Daniel A. ^{[1
]}

McClelland, David E. ^{[1
]}

机构：

[1] Australian Natl Univ, Ctr Gravitat Phys, Canberra, ACT 0200, Australia

[2] MIT, LIGO Lab, Cambridge, MA 02139 USA

[3] LIGO Hanford Observ, Richland, WA 99352 USA

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 01期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

OPTICAL FREQUENCY; PHASE; FIBER;

D O I：

10.1364/OE.20.000081

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Residual motion of the arm cavity mirrors is expected to prove one of the principal impediments to systematic lock acquisition in advanced gravitational-wave interferometers. We present a technique which overcomes this problem by employing auxiliary lasers at twice the fundamental measurement frequency to pre-stabilise the arm cavities' lengths. Applying this approach, we reduce the apparent length noise of a 1.3 m long, independently suspended Fabry-Perot cavity to 30 pm rms and successfully transfer longitudinal control of the system from the auxiliary laser to the measurement laser. (C) 2011 Optical Society of America

引用

页码：81 / 89

页数：9

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