TY - JOUR
T1 - Phase camera development for gravitational wave detectors
AU - Agatsuma, Kazuhiro
AU - Rabeling, David
AU - Van Beuzekom, Martin
AU - Van Den Brand, Jo
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
PY - 2014
Y1 - 2014
N2 - A preliminary experiment and usage of the phase camera is reported on here. The phase camera is a frequency selective wavefront sensor of the laser beam, which is utilized for observing phase-modulated laser beam (sidebands) in an interferometric gravitational wave detectors. The laser modulation/demodulation technique plays an essential role in readout of the mirror displacement for accurate position controls. The sideband signals in the power recycling cavity are easily degraded by mirror aberrations in the configuration of a marginally stable cavity. Recently, the phase camera is being applied for monitoring such aberrations in Advanced Virgo. The observed aberrations will be corrected by CO2 lasers and compensation plates.
AB - A preliminary experiment and usage of the phase camera is reported on here. The phase camera is a frequency selective wavefront sensor of the laser beam, which is utilized for observing phase-modulated laser beam (sidebands) in an interferometric gravitational wave detectors. The laser modulation/demodulation technique plays an essential role in readout of the mirror displacement for accurate position controls. The sideband signals in the power recycling cavity are easily degraded by mirror aberrations in the configuration of a marginally stable cavity. Recently, the phase camera is being applied for monitoring such aberrations in Advanced Virgo. The observed aberrations will be corrected by CO2 lasers and compensation plates.
UR - http://www.scopus.com/inward/record.url?scp=85011598934&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85011598934
SN - 1824-8039
JO - Proceedings of Science
JF - Proceedings of Science
M1 - 228
T2 - 3rd Technology and Instrumentation in Particle Physics Conference, TIPP 2014
Y2 - 2 June 2014 through 6 June 2014
ER -