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Analog differential-phase detection in optical coherence reflectometer. | LitMetric

Analog differential-phase detection in optical coherence reflectometer.

Opt Express

Department of Biomedical Imaging and Radiological Sciences, National Yang-Ming University, Taipei 112, Taiwan.

Published: August 2008

A novel differential-phase optical coherence reflectometer (DP-OCR) was proposed using a low-coherence source, integrating it with an analog differential-phase decoding method. In the experiment, the DP-OCR performed a localized surface profile measurement of an optical grating (1200 lp/mm) and demonstrated its ability to measure the translation speed of a tilted mirror. Experimentally, the resolution of the axial displacement of proposed DP-OCR at 185 pm was demonstrated.

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Source
http://dx.doi.org/10.1364/oe.16.012847DOI Listing

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