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  Diagonalization of the length sensing matrix of a dual recycled laser interferometer gravitational wave antenna

Sato, S., Kawamura, S., Kokeyama, K., Kawazoe, F., & Somiya, K. (2007). Diagonalization of the length sensing matrix of a dual recycled laser interferometer gravitational wave antenna. Physical Review D, 75: 082004. Retrieved from http://link.aps.org/abstract/PRD/v75/e082004.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-49A8-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-49A9-9
Genre: Journal Article

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prd082004.pdf (Publisher version), 317KB
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Sato, Shuichi, Author
Kawamura, Seiji, Author
Kokeyama, Keiko, Author
Kawazoe, Fumiko1, Author              
Somiya, Kentaro1, Author              
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1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24010              

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 Abstract: Next generation gravitational wave antennas employ resonant sideband extraction (RSE) interferometers with Fabry-Perot cavities in the arms as an optical configuration. In order to realize stable, robust control of the detector system, it is a key issue to extract appropriate control signals for longitudinal degrees of freedom of the complex coupled-cavity system. In this paper, a novel length sensing and control scheme is proposed for the tuned RSE interferometer that is both simple and efficient. The sensing matrix can be well diagonalized, owing to a simple allocation of two rf modulations and to a macroscopic displacement of the cavity mirrors, which cause a detuning of the rf modulation sidebands.

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 Dates: 2007
 Publication Status: Published in print
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Title: Physical Review D
Source Genre: Journal
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Pages: - Volume / Issue: 75 Sequence Number: 082004 Start / End Page: - Identifier: -