DocumentCode
944032
Title
Nondestructive measurement of index profile of an optical-fibre preform
Author
Chu, P.L.
Author_Institution
University of New South Wales, School of Electrical Engineering, Kensington, Australia
Volume
13
Issue
24
fYear
1977
Firstpage
736
Lastpage
738
Abstract
A simple and fast nondestructive method of measuring the index profile of an optical-fibre preform is presented. In this method, a laser beam is shone perpendicularly to the preform axis, and the exit angle of its backscattered ray is recorded as a function of the distance of the incident ray from the horizontal axis. A numerical integration involving these exit angles gives the profile.
Keywords
measurement by laser beam; optical fibres; refractive index measurement; backscattered ray; exit angles; index profile; laser beam; nondestructive measurement; numerical integration; optical fibre preform;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19770520
Filename
4240670
Link To Document