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Performance of a 1200m long suspended Fabry-Perot cavity | | A. Freise
; M. M. Casey
; S. Gossler
; H. Grote
; G. Heinzel
; H. Lueck
; D. I. Robertson
; K. A. Strain
; H. Ward
; B. Willke
; J. Hough
; K. Danzmann
; | | Date: |
2 Oct 2001 | | Subject: | gr-qc | | Abstract: | Using one arm of the Michelson interferometer and the power recycling mirror of the interferometric gravitational wave detector GEO600, we created a Fabry-Perot cavity with a length of 1200 m. The main purpose of this experiment was to gather first experience with the main optics, its suspensions and the corresponding control systems. The residual displacement of a main mirror is about 150 nm rms. By stabilising the length of the 1200 m long cavity to the pre-stabilised laser beam we achieved an error point frequency noise of 0.1 mHz/sqrt(Hz) at 100 Hz Fourier frequency. In addition we demonstrated the reliable performance of all included subsystems by several 10-hour-periods of continuous stable operation. Thus the full frequency stabilisation scheme for GEO600 was successfully tested. | | Source: | arXiv, gr-qc/0110020 | | Services: | Forum | Review | PDF | Favorites | |
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