High-gain power recycling of a Fabry-Perot Michelson interferometer for a gravitational-wave antenna.
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.
Sato
S
S
National Astronomical Observatory, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan. sato@icrr.u-tokyo.ac.jp
Ohashi
M
M
Fujimoto
M K
MK
Fukushima
M
M
Waseda
K
K
Miyoki
S
S
Mavalvala
N
N
Yamamoto
H
H