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Proceedings Paper

Transverse interference pattern for the examination of spliced optical fibers
Author(s): Hatem El-Ghandoor; Ibraheem M.A. Nasser; Mohammed A. Abd-El Rahman; Ali Mohammad Al-Shukri
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Paper Abstract

The transverse interference pattern from a fusion-spliced optical fiber is obtained by illuminating the fiber with a laser sheet of light. The buckling on the fiber material in one direction of the spliced point is clear inside the transverse interference pattern. The buckling height ranges from 1 to 10 microns in a waveguide of a 50 micron core adn125 micron clad diameters. The refractive index profile inside the fiber core is calculated using a new method showing the change in the refractive index due to fusion splicing of the fiber. The refractive index profile is calculated by means of the transverse interference patterns obtained at different illumination directions. A CCD camera is used to record the transverse interference pattern from the fusion-spliced optical fiber. In order to calculate the visibility of the obtained fringe patterns and the deflection angle of light through the fiber (displaying the change in the refractive index) it is necessary to measure the fringe maximum and minimum intensities using a special software package.

Paper Details

Date Published: 21 December 2001
PDF: 8 pages
Proc. SPIE 4436, Wave-Optical Systems Engineering, (21 December 2001); doi: 10.1117/12.451301
Show Author Affiliations
Hatem El-Ghandoor, Girls College of Dammam (Egypt)
Ibraheem M.A. Nasser, King Faud Univ. of Petroleum and Minerals (Saudi Arabia)
Mohammed A. Abd-El Rahman, Girls College of Dammam (Egypt)
Ali Mohammad Al-Shukri, King Faud Univ. of Petroleum and Minerals (Saudi Arabia)


Published in SPIE Proceedings Vol. 4436:
Wave-Optical Systems Engineering
Frank Wyrowski, Editor(s)

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