Multifiber angular compounding optical coherence tomography for speckle reduction
Multifiber angular compounding optical coherence tomography for speckle reduction
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DOI：
10.1364/ol.42.000125
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发表时间：
2017-01-01
期刊：
影响因子：
3.6
通讯作者：
Liu, Linbo
中科院分区：
文献类型：
--
作者：
Cui, Dongyao;Bo, En;Liu, Linbo
我们报告了一种集成光纤设计，用于实现多光纤角度复合光学相干断层扫描，从而实现角度复合以减少散斑。多面光纤阵列以不同的入射角向样品传送三束光束。来自这些通道的背向反射/背向散射信号由三通道光谱仪同时检测。在空气中，以接近 100 dB 的灵敏度测量轴向和横向分辨率分别接近 3 和 3.5 μm。我们对大鼠食道进行了离体实验，以证明噪声改善的对比度为 1.58。 (C) 2016年美国光学学会
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