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

Volume

6

Issue

1

fYear

1988

fDate

1/1/1988 12:00:00 AM

Firstpage

73

Lastpage

79

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.3967

Filename

3967