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Author

David Zionski

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2 papers indexed here

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Open access Oct 2026

Absolute measuring interferometric high-speed profilometer using wavelength modulation at ultrasonic frequencies

We present a laser interferometric approach for absolute distance measurements based on current-modulated laser diodes. The proposed system employs a point-wise measuring interferometer operating with two lasers of slightly different wavelengths in the telecommunications spectral range. By exploiting the modulated in...

Tim Eckhardt, Sebastian Hagemeier, Yi-Jian Zou et al. · 0 citations
Sep 2026

Absolute distance measurement using a multi-stage evaluation algorithm on sinusoidally phase-shifting interference signals via laser injection current modulation

Abstract We present a laser interferometric measurement system for absolute distance measurements based on currentmodulated laser diodes in the telecommunications wavelength range. The sensor system described here uses two lasers with slightly different wavelengths in a point-wise measuring interferometer and enables t...

Tim Eckhardt, Yi-Jian Zou, David Zionski et al. · 0 citations

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