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Proceedings Paper

Application of core-ring-intensity-ratio to fiber speckle-hologram sensing
Author(s): Shizhuo Yin; Cheng Lu; Francis T. S. Yu
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Paper Abstract

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.

Paper Details

Date Published: 30 October 1992
PDF: 11 pages
Proc. SPIE 1812, Optical Computing and Neural Networks, (30 October 1992); doi: 10.1117/12.131209
Show Author Affiliations
Shizhuo Yin, The Pennsylvania State Univ. (United States)
Cheng Lu, The Pennsylvania State Univ. (United States)
Francis T. S. Yu, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 1812:
Optical Computing and Neural Networks
Ken Yuh Hsu; Hua-Kuang Liu, Editor(s)

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