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Experimental realization of power recycling in an interferometer with 30 m arm-length and suspended optical components has been achieved. The power-recycling factor was about 300, corresponding to a light power of more than 100 W impinging on the beam splitter. A new concept was used to acquire simultaneous lock of the power-recycling cavity to resonance and of the Michelson phase difference to...
Resonant sideband extraction is a new optical configuration for laser-interferometric gravitational wave detectors with Fabry-Perot cavities in the arms. It reduces the thermal load on the beam splitter and the coupling mirrors of the cavities and also allows one to adapt the frequency response of the detector to a variety of requirements. We report the first experimental demonstration using a table-top...
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