Multifiber angular compounding optical coherence tomography for speckle reduction.
Opt Lett
; 42(1): 125-128, 2017 Jan 01.
Article
en En
| MEDLINE
| ID: mdl-28059194
ABSTRACT
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 â¼3 and â¼3.5 µm, respectively, in air with â¼100 dB sensitivity. We conducted ex vivo experiments on a rat esophagus to demonstrate a contrast to noise improvement of 1.58.
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Opt Lett
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2017
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Article