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

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          Abstract

          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.

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          Author and article information

          Journal
          Opt Lett
          Optics letters
          The Optical Society
          1539-4794
          0146-9592
          Aug 01 2011
          : 36
          : 15
          Affiliations
          [1 ] Department of Systems Medicine and Bioengineering, The Methodist Hospital Research Institute, Weill Cornell Medical College, Houston, Texas 77030, USA. Zhwang@ieee.org
          Article
          221201
          10.1364/OL.36.002967
          21808374

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