Advanced techniques in GEO 600

C. Affeldt*, K. Danzmann, K.L. Dooley, H. Grote, M. Hewitson, S. Hild, J. Hough, J. Leong, H. Luck, M. Prijatelj, S. Rowan, A. Rudiger, R. Schilling, R. Schnabel, E. Schreiber, B. Sorazu, K.A. Strain, H. Vahlbruch, B. Willke, W. WinklerH. Wittel

*Corresponding author for this work

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Abstract

For almost 20 years, advanced techniques have been developed and tested at the GEO 600 laser-interferometric gravitational wave detector. Many of these innovations have improved the sensitivity of GEO 600 and could be shown to be consistent with stable and reliable operation of gravitational wave detectors. We review the performance of these techniques and show how they have influenced the upgrades of other detectors worldwide. In the second half of the paper, we consider how GEO 600 continues to pioneer new techniques for future gravitational wave detectors. We describe some of the new methods in detail and present new results on how they improve the sensitivity and/or the stability of GEO 600 and possibly of future detectors.
Original languageEnglish
Article number224002
Number of pages26
JournalClassical and Quantum Gravity
Volume31
Issue number22
DOIs
Publication statusPublished - 21 Nov 2014
Externally publishedYes

Keywords

  • gravitational wave detector
  • laser interferometer
  • advanced detector
  • GRAVITATIONAL-WAVE DETECTOR
  • TRIPLE PENDULUM SUSPENSION
  • SQUEEZED STATES
  • MODE
  • ALIGNMENT
  • LIGHT
  • HYDROGEN
  • SYSTEM
  • NOISE

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