Title :
Microscopic computer tomography measurement of nonaxisymmetrically distributed optical fiber refractive index
Author :
Toga, Kenji ; Amano, Nobuo ; Noda, Ken-Ichi
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Agric. & Technol., Japan
fDate :
1/1/1988 12:00:00 AM
Abstract :
A nonaxisymmetrically distributed method for measuring the refractive index of an optical fiber is described. The light intensity distribution is observed with a microscope when an optical fiber is latterally illuminated by collimated light. The integrated refractive-index difference along the projective line is obtained by performing two integrations of the light intensity. The fiber is rotated, and the observation and calculations are repeated at each angle of rotation. The refractive-index pattern over the fiber cross section is reconstructed by computer tomography
Keywords :
computerised tomography; optical fibres; optical microscopy; refractive index measurement; angle of rotation; computer tomography; integrated refractive-index difference; integrations; light intensity distribution; microscope; microscopic computer tomography measurement; optical fiber refractive index; projective line; Distributed computing; Optical computing; Optical fiber sensors; Optical fibers; Optical microscopy; Optical refraction; Preforms; Refractive index; Strips; Tomography;
Journal_Title :
Lightwave Technology, Journal of
