Broadband endoscopic imaging through a single fiberoptic channel

Angelique Kano, John Koshel, Arthur F. Gmitro

Research output: Chapter in Book/Report/Conference proceedingConference contribution


An ultrathin fiberscope that incorporates illumination and detection into a single channel is presented for broadband diffuse reflectance imaging. It consists of a 0.5 mm diameter imaging catheter (coherent fiber bundle cemented to a GRIN lens), illumination and collection optics, and a CCD camera. To obtain reasonable image contrast, surface scatter and the specular reflections at interfaces of differing refractive index must be reduced. In this paper, the prototype system is modeled end-to-end in a non-sequential ray tracing program with the aim of locating sources of residual backscatter and backreflections. Analysis of results from two test objects, text and tissue, are presented.

Original languageEnglish (US)
Title of host publicationNovel Optical Systems Design and Optimization X
StatePublished - 2007
Event10th Conference of Novel Optical Systems Design and Optimization - San Diego, CA, United States
Duration: Aug 28 2007Aug 29 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


Other10th Conference of Novel Optical Systems Design and Optimization
Country/TerritoryUnited States
CitySan Diego, CA


  • Coherent fiber bundle
  • Diffuse reflectance
  • Ultrathin endoscope

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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