Overview of Advanced LIGO adaptive optics.
This is an overview of the adaptive optics used in Advanced LIGO (aLIGO), known as the thermal compensation system (TCS). The TCS was designed to minimize thermally induced spatial distortions in the interferometer optical modes and to provide some correction for static curvature errors in the core optics of aLIGO. The TCS is comprised of ring heater actuators, spatially tunable CO2laser projectors, and Hartmann wavefront sensors. The system meets the requirements of correcting for nominal distortion in aLIGO to a maximum residual error of 5.4 nm rms, weighted across the laser beam, for up to 125 W of laser input power into the interferometer.
Aidan F
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Brooks
Benjamin
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Abbott
Muzammil A
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Arain
Giacomo
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Ciani
Ayodele
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Cole
Greg
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Grabeel
Eric
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Gustafson
Chris
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Guido
Matthew
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Heintze
Alastair
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Heptonstall
Mindy
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Jacobson
Won
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Kim
Eleanor
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King
Alexander
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Lynch
Stephen
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O'Connor
David
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Ottaway
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Mailand
Guido
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Mueller
Jesper
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Munch
Virginio
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Sannibale
Zhenhua
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Shao
Michael
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Smith
Peter
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Veitch
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Cheryl
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Vorvick
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