title: Multifiber angular compounding optical coherence tomography for speckle reduction.
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 ∼3 and ∼3.5  μm, respectively, in air with ∼100  dB sensitivity. We conducted ex vivo experiments on a rat esophagus to demonstrate a contrast to noise improvement of 1.58.
authors.forename: Dongyao
authors.initials: D
authors.lastname: Cui
authors.forename: En
authors.initials: E
authors.lastname: Bo
authors.forename: Yuemei
authors.initials: Y
authors.lastname: Luo
authors.forename: Xinyu
authors.initials: X
authors.lastname: Liu
authors.forename: Xianghong
authors.initials: X
authors.lastname: Wang
authors.forename: Si
authors.initials: S
authors.lastname: Chen
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Yu
authors.forename: Shi
authors.initials: S
authors.lastname: Chen
authors.forename: Ping
authors.initials: P
authors.lastname: Shum
authors.forename: Linbo
authors.initials: L
authors.lastname: Liu