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Laboratory experiment demonstrates signal extraction for phase deviations in a power-recycled interferometer, highlighting viable optical control techniques for gravitational-wave detectors.
Large-scale gravitational-wave detectors currently under construction such as the LIGO detectors use multiplemirror resonant optical systems containing several surfaces at which the relative phase of interfering light beams must be controlled. We describe a tabletop experiment that demonstrates a scheme for extracting signals in such an interferometer corresponding to deviations from perfect interference.
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Regehr et al. (1995) studied this question.
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