Balanced-Detection Spectra Domain Optical Coherence Tomography System
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United States of America Patent
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Issued Date -
Jul 17, 2014
app pub date -
May 1, 2013
filing date -
Jan 17, 2013
priority date (Note) -
Abandoned
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Abstract
A balanced-detection spectra domain optical coherence tomography system is disclosed. A light beam L emitting from the light source module is passed through the second beam splitter, the first beam splitter in series, and then split to the mirror and the sample respectively, and further simultaneously reflected to the first beam splitter, a light beam L1 and a light beam L2 are refracted by the first beam splitter and the second beam splitter respectively, and then transmitted to the first collimator and the second collimator respectively, and a phase difference between the light beam L1 and the light beam L2 is 180°. Thereby, simple and efficient background noise suppression, including DC noise and the light interferences at each interface of the sample, is provided.
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