Faraday isolators play a key role in the operation of large-scale gravitational-wave detectors. Second-generation gravitational-wave interferometers such as the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) and Advanced Virgo will use high-average-power cw lasers (up to 200 W) requiring specially designed Faraday isolators that are immune to the effects resulting from the laser beam absorption–degraded isolation ratio, thermal lensing, and thermally induced beam steering. In this paper, we present a comprehensive study of Faraday isolators designed specifically for high-performance operation in high-power gravitational-wave interferometers.
© 2012 Optical Society of America
Original Manuscript: January 19, 2012
Revised Manuscript: April 6, 2012
Manuscript Accepted: April 17, 2012
Published: June 27, 2012
Oleg V. Palashov, Dmitry S. Zheleznov, Alexander V. Voitovich, Victor V. Zelenogorsky, Eugene E. Kamenetsky, Efim A. Khazanov, Rodica M. Martin, Katherine L. Dooley, Luke Williams, Antonio Lucianetti, Volker Quetschke, Guido Mueller, David H. Reitze, David B. Tanner, Eric Genin, Benjamin Canuel, and Julien Marque, "High-vacuum-compatible high-power Faraday isolators for gravitational-wave interferometers," J. Opt. Soc. Am. B 29, 1784-1792 (2012)