Downselect of the signal extraction scheme for LCGT

K. Kokeyama, S. Sato, F. Kawazoe, K. Somiya, Mitsuhiro Fukushima, S. Kawamura, Akio Sugamoto

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)424-431
Number of pages8
JournalJournal of Physics: Conference Series
Volume32
Issue number1
DOIs
Publication statusPublished - 2006 Mar 2
Externally publishedYes

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sidebands
gravitational waves
cryogenics
telescopes
phase modulation
asymmetry
broadband
detectors
configurations

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Kokeyama, K., Sato, S., Kawazoe, F., Somiya, K., Fukushima, M., Kawamura, S., & Sugamoto, A. (2006). Downselect of the signal extraction scheme for LCGT. Journal of Physics: Conference Series, 32(1), 424-431. https://doi.org/10.1088/1742-6596/32/1/065

Downselect of the signal extraction scheme for LCGT. / Kokeyama, K.; Sato, S.; Kawazoe, F.; Somiya, K.; Fukushima, Mitsuhiro; Kawamura, S.; Sugamoto, Akio.

In: Journal of Physics: Conference Series, Vol. 32, No. 1, 02.03.2006, p. 424-431.

Research output: Contribution to journalArticle

Kokeyama, K, Sato, S, Kawazoe, F, Somiya, K, Fukushima, M, Kawamura, S & Sugamoto, A 2006, 'Downselect of the signal extraction scheme for LCGT', Journal of Physics: Conference Series, vol. 32, no. 1, pp. 424-431. https://doi.org/10.1088/1742-6596/32/1/065
Kokeyama K, Sato S, Kawazoe F, Somiya K, Fukushima M, Kawamura S et al. Downselect of the signal extraction scheme for LCGT. Journal of Physics: Conference Series. 2006 Mar 2;32(1):424-431. https://doi.org/10.1088/1742-6596/32/1/065
Kokeyama, K. ; Sato, S. ; Kawazoe, F. ; Somiya, K. ; Fukushima, Mitsuhiro ; Kawamura, S. ; Sugamoto, Akio. / Downselect of the signal extraction scheme for LCGT. In: Journal of Physics: Conference Series. 2006 ; Vol. 32, No. 1. pp. 424-431.
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