Abstract

The experimental aspects of a sensitive, nondestructive, and noncontacting method to measure the noncircularity of dielectric cylinders are presented. The technique makes use of the variation in the position of a fringe in the backscattered light arising from a beam that is incident at right angles to the cylinders axis, as the cylinder is rotated. The method has been applied to optical fibers, and ellipticities as small as 0.997 have been measured. The results are in agreement with photomicroscopy measurements and with theoretical predictions.

© 1976 Optical Society of America

Detection of geometric perturbations in optical fibers

H. M. Presby
Appl. Opt. 16(3) 695-700 (1977)

Light Scattering from Elliptical Fibers

D. Marcuse
Appl. Opt. 13(8) 1903-1905 (1974)

Diameter determination of graded-index optical fibers from backward-scattered pattern

Charoon Saekeang and Pak L. Chu
Appl. Opt. 18(19) 3276-3281 (1979)

Refractive-index profile of an optical fiber: its measurement by the scattering-pattern method

T. Okoshi and K. Hotate
Appl. Opt. 15(11) 2756-2764 (1976)

Measurement of the elliptical birefringence of single-mode optical fibers

Thierry Chartier, Ammar Hideur, Cafer Özkul, François Sanchez, and Guy M. Stéphan
Appl. Opt. 40(30) 5343-5353 (2001)