Multifiber angular compounding optical coherence tomography for speckle reduction

• DOI: 10.1364/ol.42.000125
• Publication Date: 2016-12-22T14:16:36Z
• Authors: Dongyao Cui; En Bo; Yuemei Luo; Xinyu Liu; Xianghong Wang; Si Chen; Xiaojun Yu; Shi Chen; Ping Shum; Linbo Liu
• Keywords: Compounding

We report on an integrated fiber optic design to implement multifiber angular compounding optical coherence tomography, which enables for speckle reduction. A multi-facet array delivers three light beams 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 be ∼3 ∼3.5 μm, respectively, in air ∼100 dB sensitivity. conducted ex vivo experiments rat esophagus demonstrate contrast noise improvement of 1.58.