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An optical lock-in camera for gravitational wavedetectors
2020
Optics Express
Knowledge of the intensity and phase profiles of spectral components in a coherent optical field is critical for a wide range of high-precision optical applications. One of these is interferometric gravitational wave detectors, which rely on the optical beats between these fields for precise control of the experiment. Here we describe an optical lock-in camera and show that it can be used to record optical beats at MHz or greater frequencies with higher spatial and temporal resolution than
doi:10.1364/oe.384754
pmid:32403481
fatcat:odtrrfmszjadbgf6doov7m4gpe