2012/11/22 by Nicolas Verrier, Michael Atlan · 1 citation
Engineering · Physics and Astronomy · #Advanced Fiber Optic Sensors #Digital Holography and Microscopy #Photorefractive and Nonlinear Optics #physics.optics
paper · pdf · doi:10.1364/ol.38.000739
arxiv created 2012/11/22 · openalex publication_date 2013/02/26 · arxiv updated 2015/06/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We report a demonstration of the measurement of the ratio between an optical modulation side band component and the non-shifted light component by time-averaged heterodyne holography in off-axis and frequency-shifting configuration, through coherent frequency-division multiplexing with a dual optical local oscillator. Experimental results of sinusoidal vibration sensing are reported. This technique enables absolute measurements of sub-nanometric out-of-plane vibration amplitudes.