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  The GEO600 project

Lück, H., & GEO600 Team (1997). The GEO600 project. Classical and quantum gravity, 14(6), 1471-1476. doi:10.1088/0264-9381/14/6/012.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-CAC5-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0012-CAC6-C
Genre: Journal Article

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0264-9381_14_6_012.pdf (Any fulltext), 246KB
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 Creators:
Lück, Harald1, Author              
GEO600 Team, Author
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              

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 Abstract: GEO600, an interferometric gravitational-wave detector with an arm length of 600 m, is currently being built in northern Germany close to Hannover. GEO600 incorporates an externally modulated fourfold delay-line Michelson interferometer giving a round-trip optical length of 2400 m. A master - slave combination of a monolithic diode-pumped Nd:YAG ring laser and an injection-locked amplifier will give a light power of about 10 W at a wavelength of 1064 nm. Power recycling increases the light power inside the interferometer to a level of about 10 kW. The use of both power and signal recycling will yield a sensitivity of the same order of magnitude as the first stages of the other large-scale gravitational-wave detectors LIGO and VIRGO currently under construction. High signal recycling factors allow the sensitivity to be increased at a chosen frequency while reducing the bandwidth of the detector. This gives an advantage over broad-band detectors in detecting narrow-band periodic sources such as pulsars. The 25 cm diameter mirrors will be suspended as double pendulums from a platform supported by vibration-reduction systems. The passive filtering properties of this system sufficiently reduce the seismic noise in the frequency range of interest, i.e. 50 - 1000 Hz. The detector will start taking data in the year 2000.

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 Dates: 1997-06
 Publication Status: Published in print
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 Identifiers: DOI: 10.1088/0264-9381/14/6/012
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Title: Classical and quantum gravity
Source Genre: Journal
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Publ. Info: Bristol, U.K. : Institute of Physics
Pages: - Volume / Issue: 14 (6) Sequence Number: - Start / End Page: 1471 - 1476 Identifier: ISSN: 0264-9381
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925513480_1