Experimental investigation of a control scheme for a zero-detuning resonant sideband extraction interferometer for next-generation gravitational-wave detectors

Fumiko Kawazoe, Akio Sugamoto, Volker Leonhardt, Shuichi Sato, Toshitaka Yamazaki, Mitsuhiro Fukushima, Seiji Kawamura, Osamu Miyakawa, Kentaro Somiya, Tomoko Morioka, Atsushi Nishizawa

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Abstract

Some next-generation gravitational-wave detectors, such as the American Advanced LIGO project and the Japanese LCGT project, plan to use power recycled resonant sideband extraction (RSE) interferometers for their interferometer's optical configuration. A power recycled zero-detuning (PRZD) RSE interferometer, which is the default design for LCGT, has five main length degrees of freedom that need to be controlled in order to operate a gravitational-wave detector. This task is expected to be very challenging because of the complexity of optical configuration. A new control scheme for a PRZD RSE interferometer has been developed and tested with a prototype interferometer. The PRZD RSE interferometer was successfully locked with the control scheme. It is the first experimental demonstration of a PRZD RSE interferometer with suspended test masses. The result serves as an important step for the operation of LCGT.

Original languageEnglish
Article number195008
JournalClassical and Quantum Gravity
Volume25
Issue number19
DOIs
Publication statusPublished - 2008 Oct 7
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kawazoe, F., Sugamoto, A., Leonhardt, V., Sato, S., Yamazaki, T., Fukushima, M., Kawamura, S., Miyakawa, O., Somiya, K., Morioka, T., & Nishizawa, A. (2008). Experimental investigation of a control scheme for a zero-detuning resonant sideband extraction interferometer for next-generation gravitational-wave detectors. Classical and Quantum Gravity, 25(19), [195008]. https://doi.org/10.1088/0264-9381/25/19/195008