Galaxies (Dec 2020)

Advanced LIGO Laser Systems for O3 and Future Observation Runs

  • Nina Bode,
  • Joseph Briggs,
  • Xu Chen,
  • Maik Frede,
  • Peter Fritschel,
  • Michael Fyffe,
  • Eric Gustafson,
  • Matthew Heintze,
  • Peter King,
  • Jian Liu,
  • Jason Oberling,
  • Richard L. Savage,
  • Andrew Spencer,
  • Benno Willke

DOI
https://doi.org/10.3390/galaxies8040084
Journal volume & issue
Vol. 8, no. 4
p. 84

Abstract

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The advanced LIGO gravitational wave detectors need high power laser sources with excellent beam quality and low-noise behavior. We present a pre-stabilized laser system with 70 W of output power that was used in the third observing run of the advanced LIGO detectors. Furthermore, the prototype of a 140 W pre-stabilized laser system for future use in the LIGO observatories is described and characterized.

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