This system demonstrates dual-laser vibrometers detecting nm-scale displacements in remote targets, highlighting advanced sensing capabilities.
We propose a hybrid remote and distributed vibration sensing system based on phase-sensitive optical time-domain reflectometry with collimator-based sensor heads. We demonstrate dual-laser vibrometers that detects nm-scale displacements of remote targets.
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Kohno et al. (2025) studied this question.
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