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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 5 — Mar. 5, 2007
  • pp: 2151–2165

Numerical analysis of light propagation in image fibers or coherent fiber bundles

Kristen Lantz Reichenbach and Chris Xu  »View Author Affiliations

Optics Express, Vol. 15, Issue 5, pp. 2151-2165 (2007)

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The coupling properties of multi-core fibers are analyzed using the multipole method and coupled mode theory in order to gain insights into the performance of image fibers that are commonly used in flexible endoscopes. It is explained that coherent fiber bundles with high core density are able to transport images because nonuniformity in the pixel size reduces the inter-core coupling that causes crosstalk. The wavelength, average core size and separation, and degree of core size variation determine the strength of coupling between adjacent cores, such that fibers with a smaller core size and separation at longer wavelengths require more nonuniformity in order for reliable image transmission. Guidelines are given for assessing the performance of image fibers in a particular system.

© 2007 Optical Society of America

OCIS Codes
(060.2350) Fiber optics and optical communications : Fiber optics imaging
(060.2400) Fiber optics and optical communications : Fiber properties
(170.2150) Medical optics and biotechnology : Endoscopic imaging

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: November 7, 2006
Revised Manuscript: January 27, 2007
Manuscript Accepted: January 29, 2007
Published: March 5, 2007

Virtual Issues
Vol. 2, Iss. 4 Virtual Journal for Biomedical Optics

Kristen L. Reichenbach and Chris Xu, "Numerical analysis of light propagation in image fibers or coherent fiber bundles," Opt. Express 15, 2151-2165 (2007)

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  37. K. L. Reichenbach and C. Xu have submitted for publication a manuscript entitled "Analysis and measurement of light propagation in coherent fiber bundles".

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