High-gain power recycling of a Fabry-Perot Michelson interferometer for a gravitational-wave antenna |
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| Authors: | Sato S Ohashi M Fujimoto M K Fukushima M Waseda K Miyoki S Mavalvala N Yamamoto H |
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| Affiliation: | National Astronomical Observatory, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan. sato@icrr.u-tokyo.ac.jp |
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| Abstract: | Power recycling was implemented on a fully suspended prototype interferometer with arm lengths of 20 m. A wave-front-sensing technique for alignment control of the suspended mirrors was also implemented, which allowed for several hours of stable operation. A power-recycling gain of greater than 12 was achieved, a significant increase over the highest gain in a suspended mirror Fabry-Perot Michelson interferometer reported to date. |
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