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High power in Advanced LIGO

Published online by Cambridge University Press:  29 January 2019

Terra Hardwick  and
for the LIGO Scientific Collaboration
Terra Hardwick
Affiliation:
Louisiana State University, Baton Rouge, LA 70803 email: terra.hardwick@ligo.org
for the LIGO Scientific Collaboration
Affiliation:
Louisiana State University, Baton Rouge, LA 70803 email: terra.hardwick@ligo.org
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Abstract

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The LIGO detectors have just completed a successful and exciting observation run. Both facilities are now undergoing upgrades and commissioning, including doubling the circulating power in the interferometer which will increase LIGO’s sensitivity above 100 Hz. This paper motivates the power increase and discusses the problems in general that arise with higher power and the progress to date with addressing them. Topics include input power noise coupling, parametric instability, and thermal effects.

Keywords

gravitational wavesinstrumentation: detectorsinstrumentation: adaptive optics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S338: Gravitational Wave Astrophysics: Early Results from Gravitational Wave Searches and Electromagnetic Counterparts , October 2017 , pp. 90 - 97
Copyright
Copyright © International Astronomical Union 2019 

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