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Proceedings Paper

Inverse Abel transform algorithms to determine the radial profile of the photoelastic coefficient of glass optical fibers
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Paper Abstract

We compare two algorithms to determine the radial profile of the photoelastic coefficient C in glass optical fibers. We first measure the retardance profile of a transversally illuminated fiber as a function of tensile load. The radial profile C(r) is obtained from the inverse Abel transform of this retardance profile. Our first algorithm expands the measured retardance in its Fourier coefficients before computing the inverse Abel transform. With the second algorithm the expected result of the inverse Abel transform is expanded and the forward Abel transform of that expansion is compared to the measured retardance. We apply both approaches on the retardance measurement of commercially available single mode and multi-mode fibers.

Paper Details

Date Published: 29 April 2016
PDF: 8 pages
Proc. SPIE 9899, Optical Sensing and Detection IV, 98992F (29 April 2016); doi: 10.1117/12.2227755
Show Author Affiliations
Sophie Acheroy, Royal Military Academy (Belgium)
Patrick Merken, Royal Military Academy (Belgium)
Thomas Geernaert, Vrije Univ. Brussel (Belgium)
Heidi Ottevaere, Vrije Univ. Brussel (Belgium)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)
Francis Berghmans, Vrije Univ. Brussel (Belgium)


Published in SPIE Proceedings Vol. 9899:
Optical Sensing and Detection IV
Francis Berghmans; Anna G. Mignani, Editor(s)

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