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

Document #:

LIGO-P080027-x0

Document type:

P - Publications

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.

Files in Document:

• P080027-00.pdf (file is not accessible)

Other Files:

• P080027-P.pdf (file is not accessible)

Topics:

• Document Migration from the old DCC
• Public relations

Authors:

• Seiji Kawamura
• Kentaro Somiya
• Osamu Miyakawa
• Atsushi Nishizawa
• Shuichi Sato
• Tomoko Morioka
• Fumiko Kawazoe
• Akio Sugamoto

Notes and Changes:

Rev P080027-00-Z:
- Full document number: LIGO-P080027-00-Z
- Author(s): Fumiko Kawazoe; Akio Sugamoto
- Document date: 2008-03-19
- Document received date: 2008-03-19
- Document entry date: 2008-03-19

Journal References:

Published in Class Quant Grav vol. 25 pg. 195008 (12pp).

Publication Information:

http://www.iop.org/EJ/abstract/0264-9381/25/19/195008