Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Nondestructive measurement of refractive-index profile and cross-sectional geometry of optical fiber preforms

Not Accessible

Your library or personal account may give you access

Abstract

A modified focusing method for measuring simultaneously the refractive-index profile and the cross-sectional geometry of an optical fiber preform is presented. In this method the preform is immersed in index-matching liquid, and collimated light is made to impinge on the preform laterally. The intensity distributions of the transmitted light are detected on two planes inside the preform core. From the recorded light intensity distributions, the deflection function is calculated. After the preform has been rotated through 180° and the necessary data have been collected, a numerical inversion is performed to obtain the 2-D index profile. In this paper, the principle, the experimental setup, and results are described. The sensitivity of the method to measurement errors and the accuracy of the inversion formula were investigated by computer simulations. It was found that the error of the index profile measurement was <1%.

© 1980 Optical Society of America

Full Article  |  PDF Article
More Like This
Nondestructive measurement of refractive index profile for holey fiber preforms

Yucheng Zhao, Katja Lyytikainen, Martijn A. van Eijkelenborg, and Simon Fleming
Opt. Express 11(20) 2474-2479 (2003)

Focusing method for nondestructive measurement of optical fiber index profiles

D. Marcuse and H. M. Presby
Appl. Opt. 18(1) 14-22 (1979)

Refractive-index profile measurement of preform rods by a transverse differential interferogram

Yasuo Kokubun and Kenichi Iga
Appl. Opt. 19(6) 846-851 (1980)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved