Readout and control of a power-recycled interferometric gravitational-wave antenna
Readout and control of a power-recycled interferometric gravitational-wave antenna
Interferometric gravitational-wave antennas are based on Michelson interferometers whose sensitivity to small differential length changes has been enhanced by the addition of multiple coupled optical resonators. The use of optical cavities is essential for reaching the required sensitivity but sets challenges for the control system, which must maintain the cavities …