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Use of multimode optical fibers for fiber-based coherent anti-Stokes Raman scattering microendoscopy imaging

机译:多模光纤用于基于纤维的相干反斯托克斯拉曼散射显微内窥镜成像

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摘要

A multimode fiber (MMF) was used for both delivery of excitation lasers and collection of returned coherent anti-Stokes Raman scattering (CARS) signals in a CARS microendoscopy prototype imaging system. We demonstrated a polarization-based scheme for suppression of four-wave mixing (FWM) signals in delivery fibers. Our experimental results showed that this polarization-based FWM-suppressing scheme can dramatically reduce FWM signals generated in MMFs, and MMFs can be used to produce CARS images in this microendoscopy system. The proposed MMF-based CARS microendoscopy imaging system with the polarization-based FWM-suppressing scheme offers a potential platform for building fiber-based CARS microendoscopes that can effectively suppress FWM background noises.
机译:在CARS显微内窥镜原型成像系统中,多模光纤(MMF)用于传送激发激光和收集返回的相干反斯托克斯拉曼散射(CARS)信号。我们展示了一种基于极化的方案来抑制传输光纤中的四波混频(FWM)信号。我们的实验结果表明,这种基于偏振的FWM抑制方案可以显着减少MMF中生成的FWM信号,并且MMF可用于在此微内窥镜系统中生成CARS图像。拟议的基于MMF的CARS显微内窥镜成像系统具有基于偏振的FWM抑制方案,为构建可有效抑制FWM背景噪声的基于纤维的CARS显微内窥镜提供了潜在平台。

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