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Downselect of the signal extraction scheme for LCGT

Kokeyama, K., Sato, S., Kawazoe, F., Somiya, K., Fukushima, M., Kawamura, S. and Sugamoto, Akio 2006. Downselect of the signal extraction scheme for LCGT. Journal of Physics: Conference Series 32 , 065. 10.1088/1742-6596/32/1/065

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Abstract

Large Cryogenic Gravitational wave Telescope (LCGT) is the future Japanese gravitational-wave detector. It will employ the broadband resonant sideband extraction (RSE) as its optical configuration. We compared four signal extraction schemes that have been proposed so as to downselect one of them as the scheme for LCGT. The selected scheme uses the phase and amplitude modulation sidebands: the phase modulation sidebands transmitting to the antisymmetric port (AP) and the amplitude modulation sidebands reffected to the symmetric port (SP) by the functions of the Michelson asymmetry. Using these sidebands, a new technique called 'delocation' is applicable. One advantage is that the control signals of the undesired signals do not appear at the AP, where the differential signals appear.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Physics and Astronomy
Publisher: IOP Publishing
ISSN: 1742-6588
Last Modified: 26 May 2021 10:45
URI: http://orca.cardiff.ac.uk/id/eprint/139951

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