4 October 1994 High-sensitivity adaptive vibration measurements with nonsteady-state photo-EMF-based photodetectors
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We present results of detailed experimental study of threshold sensitivity of GaAs adaptive photodetector at 632.8 nm. The minimal experimentally detected sinusoidal phase modulation was approximately equals 1.6 X 10-6 rad(root)mW/Hz that approached the theoretical limit for these devices (approximately equals 2 X 10-7 rad(root)mW/Hz) and allowed detection of approximately equals 1.6 X 10-7 micrometers vibration amplitudes with 1 mW laser power in 1 Hz bandwidth.
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Nikolai A. Korneev, Nikolai A. Korneev, Ponciano Rodriguez-Montero, Ponciano Rodriguez-Montero, B. Sanchez, B. Sanchez, Serguei I. Stepanov, Serguei I. Stepanov, Igor A. Sokolov, Igor A. Sokolov, } "High-sensitivity adaptive vibration measurements with nonsteady-state photo-EMF-based photodetectors", Proc. SPIE 2264, Vibration Monitoring and Control, (4 October 1994); doi: 10.1117/12.188873; https://doi.org/10.1117/12.188873

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