Analog differential-phase detection in optical coherence reflectometer

Optics Express
Huan-Jang HuangChien Chou

Abstract

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.

References

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Citations

Dec 8, 2010·Zeitschrift für medizinische Physik·Adolf Friedrich Fercher
Aug 5, 2017·Journal of Biomedical Optics·Sheng-Yi ChangChien Chou

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