Application of core-ring-intensity-ratio to fiber speckle-hologram sensing

Shizhuo Yin, Cheng Lu, Francis T. Yu

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


A fiber speckle-hologram is formed by two coherent light fields, in which a speckle field emerging from a multimode fiber combines with a convergent reference beam. When the speckle-hologram is illuminated by the same speckle field from the fiber, a high intensity correlation peak is reconstructed. If the fiber is subjected to some status changes, the correlation peak gradually decreases and disappears. The main objective of this paper is to use a `core-ring-intensity-ratio' technique to analyze the correlation peak so the fiber status changes can be determined. An experimental demonstration to confirm this relationship is also given.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Number of pages11
ISBN (Print)0819410128
StatePublished - 1993
EventOptical Computing and Neural Networks - Hsinchu, Taiwan
Duration: Dec 16 1992Dec 17 1992

Publication series

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


OtherOptical Computing and Neural Networks
CityHsinchu, Taiwan

All Science Journal Classification (ASJC) codes

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


Dive into the research topics of 'Application of core-ring-intensity-ratio to fiber speckle-hologram sensing'. Together they form a unique fingerprint.

Cite this