Automatic fringe analysis of two-beam interference patterns for measurement of refractive index and birefringence profiles of fibres

T. Z.N. Sokkar; H. M. El Dessouky; M. A. Shams-Eldin; M. A. El-Morsy

doi:10.1016/j.optlaseng.2006.09.003

Automatic fringe analysis of two-beam interference patterns for measurement of refractive index and birefringence profiles of fibres

T. Z.N. Sokkar, H. M. El Dessouky, M. A. Shams-Eldin, M. A. El-Morsy

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

Automatic fringe pattern analysis is a powerful and inexpensive digital image-processing technique. Two-beam polarizing interference Pluta microscope [Pluta M. Opt Acta 1971;18:661, Pluta M. J Microsc 1972;96:309] is automated by the computer-aid via CCD camera and digital frame grabber. Software program is prepared to deal with the duplicated (separated and overlapped) Microinterferograms produced by two-beam polarizing microscope. It also gives an accurate and fast automatic measurement of refractive index and birefringence profiles for fibres. In this paper, the refractive index and birefringence profiles of two different types of fibres, basalt and polypropylene (PP) fibres are presented. A new method to determine the birefringence profile of fibres from non-duplicated microinterferogram is suggested. The cold drawing process for PP fibres is studied.

Original language	English
Pages (from-to)	431-441
Number of pages	11
Journal	Optics and Lasers in Engineering
Volume	45
Issue number	3
Early online date	3 Nov 2006
DOIs	https://doi.org/10.1016/j.optlaseng.2006.09.003
Publication status	Published - Mar 2007
Externally published	Yes

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title = "Automatic fringe analysis of two-beam interference patterns for measurement of refractive index and birefringence profiles of fibres",

abstract = "Automatic fringe pattern analysis is a powerful and inexpensive digital image-processing technique. Two-beam polarizing interference Pluta microscope [Pluta M. Opt Acta 1971;18:661, Pluta M. J Microsc 1972;96:309] is automated by the computer-aid via CCD camera and digital frame grabber. Software program is prepared to deal with the duplicated (separated and overlapped) Microinterferograms produced by two-beam polarizing microscope. It also gives an accurate and fast automatic measurement of refractive index and birefringence profiles for fibres. In this paper, the refractive index and birefringence profiles of two different types of fibres, basalt and polypropylene (PP) fibres are presented. A new method to determine the birefringence profile of fibres from non-duplicated microinterferogram is suggested. The cold drawing process for PP fibres is studied.",

keywords = "Birefringence profiles, Drawing and fibres, Image analysis, Interference, Refractive index",

author = "Sokkar, {T. Z.N.} and {El Dessouky}, {H. M.} and Shams-Eldin, {M. A.} and El-Morsy, {M. A.}",

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AU - El Dessouky, H. M.

AU - Shams-Eldin, M. A.

AU - El-Morsy, M. A.

PY - 2007/3

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KW - Birefringence profiles

KW - Drawing and fibres

KW - Image analysis

KW - Interference

KW - Refractive index

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Automatic fringe analysis of two-beam interference patterns for measurement of refractive index and birefringence profiles of fibres

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