Performances of endoscopic holography with a multicore optical fiber

Olivier Coquoz, Ramiro Conde, Fatemeh Taleblou, Christian Depeursinge

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

A holographic setup that involves the use of a multicore optical fiber as an in situ recording medium has been developed. The hologram is transmitted to a CCD camera for electronic processing, and the image is reconstructed numerically, providing more flexibility to the holographic process. The performances of this imaging system have been evaluated in terms of the resolution limit and robustness relative to noise. The experimental cutoff frequency has been measured experimentally over a range of observation distances (4–10 mm) and presents a very good agreement with the predictions made by simulation. The system features a resolution of 5-μm objects for a 4-mm observation distance. The different sources of noise have been analyzed, and their influence on resolution has been proved to be nonrelevant.

Original languageEnglish (US)
Pages (from-to)7186-7193
Number of pages8
JournalApplied Optics
Volume34
Issue number31
DOIs
StatePublished - Jan 1 1995

Keywords

  • Endoscopy
  • Holography
  • Multicore optical fiber

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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