The automatic alignment system of GEO 600

被引:16
作者
Grote, H
Heinzel, G
Freise, A
Gossler, S
Willke, B
Lück, H
Ward, H
Casey, M
Strain, KA
Robertson, D
Hough, J
Danzmann, K
机构
[1] Univ Hannover, Inst Atom & Mol Phys, D-30167 Hannover, Germany
[2] Albert Einstein Inst Gravitat Phys, D-30167 Hannover, Germany
[3] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland
关键词
D O I
10.1088/0264-9381/19/7/384
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
This paper gives an overview of the automatic mirror alignment system of the modecleaner and main interferometer of the GEO 600 gravitational wave detector. In order to achieve the required sensitivity of the detector, the eigenmodes of all optical cavities have to be aligned with respect to the incoming beams (or vice versa) and kept aligned for long measuring periods. Moreover the beam spots have to be centred on the mirrors to minimize coupling of residual angular mirror motion into changes of the optical path length. An overview of the principles and setup for the automatic alignment is given, and first results of the modecleaner and 1200 m cavity alignment system are presented, including the error-point spectra of mirror angular motions, which are smaller than 10(-8) rad Hz(-1/2) below 10 Hz.
引用
收藏
页码:1849 / 1855
页数:7
相关论文
共 6 条
[1]  
DANZMANN K, 1994, 1 E AM C GRAV WAV EX, P100
[2]   LASER PHASE AND FREQUENCY STABILIZATION USING AN OPTICAL-RESONATOR [J].
DREVER, RWP ;
HALL, JL ;
KOWALSKI, FV ;
HOUGH, J ;
FORD, GM ;
MUNLEY, AJ ;
WARD, H .
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY, 1983, 31 (02) :97-105
[3]   Performance of a 1200 m long suspended Fabry-Perot cavity [J].
Freise, A ;
Casey, MM ;
Gossler, S ;
Grote, H ;
Heinzel, G ;
Lück, H ;
Robertson, DI ;
Strain, KA ;
Ward, H ;
Willke, B ;
Hough, J ;
Danzmann, K .
CLASSICAL AND QUANTUM GRAVITY, 2002, 19 (07) :1389-1397
[4]   The modecleaner system and suspension aspects of GEO 600 [J].
Gossler, S ;
Casey, MM ;
Freise, A ;
Grote, H ;
Lück, H ;
McNamara, P ;
Plissi, MV ;
Robertson, DI ;
Robertson, NA ;
Skeldon, K ;
Strain, KA ;
Torrie, CI ;
Ward, H ;
Willke, B ;
Hough, J ;
Danzmann, K .
CLASSICAL AND QUANTUM GRAVITY, 2002, 19 (07) :1835-1842
[5]  
HEINZEL, 1999, THESIS U HANNOVER, P141
[6]   AUTOMATIC ALIGNMENT OF OPTICAL INTERFEROMETERS [J].
MORRISON, E ;
MEERS, BJ ;
ROBERTSON, DI ;
WARD, H .
APPLIED OPTICS, 1994, 33 (22) :5041-5049