Alignment control of GEO 600

被引：16

作者：

Grote, H

Heinzel, G

Freise, A

Gossler, S

Willke, B

Lück, H

Ward, H

Casey, MM

Strain, KA

Robertson, DI

Hough, J

Danzmann, K

机构：

[1] Max Planck Inst Gravitat Phys, Albert Einstein Inst, D-30167 Hannover, Germany

[2] Univ Hannover, D-30167 Hannover, Germany

[3] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

来源：

CLASSICAL AND QUANTUM GRAVITY | 2004年 / 21卷 / 05期

关键词：

D O I：

10.1088/0264-9381/21/5/009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We give an overview of the automatic mirror alignment system of the gravitational wave detector GEO 600. In order to achieve the required sensitivity of the Michelson interferometer, the axes of interfering beams have to be superimposed with a residual angle of the order 10(-8) rad. The beam spots have to be centred on the mirrors to minimize coupling of alignment noise into longitudinal signals. We present the actual control topology and results from the system in operation, which controls all alignment degrees of the power-recycled Michelson. With this system continuous lock stretches of more than 121 h duration were achieved.

引用

页码：S441 / S449

页数：9

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