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Multifiber angular compounding optical coherence tomography for speckle reduction
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DOI：10.1364/OL.42.000125.png)
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We report on an integrated fiber optic design to implement multifiber angular compounding optical coherence tomography, which enables angular compounding for speckle reduction. A multi-facet fiber array delivers three light beams to the sample with different incident angles. Back-reflective/back-scattered signals from these channels were simultaneously detected by a three-channel spectrometer. The axial and lateral resolution was measured to be similar to 3 and similar to 3.5 mu m, respectively, in air with similar to 100 dB sensitivity. We conducted ex vivo experiments on a rat esophagus to demonstrate a contrast to noise improvement of 1.58. (C) 2016 Optical Society of America
Keyword:
IMAGES
FILTER
OCT
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3.3
论文数:
4.0W
被引数:
7.6W
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