Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Two-Dimensional Index Profiling of Fibers and Waveguides

Published

Author(s)

N. H. Fontaine, M. Young

Abstract

We have constructued a two-dimensional refracted-ray scanner that can resolve index-of-refraction increments of approximately 4 x 10-5. this resolution is an order of magnitude finer than the uncertainty of the measurement. The scanner can be adapted to evaluate either fibers or planar waveguides. The two-dimensional scan and the high precision allow visualization of features, such as deposition layers, that are difficult if not impossible to see in conventional one-dimensional scans.
Citation
Optics Letters
Volume
38
Issue
33

Keywords

critical angle, collimation, fibers, index of refraction, index profile, metrology, multimode, refracted near-field, single-mode

Citation

Fontaine, N. and Young, M. (1999), Two-Dimensional Index Profiling of Fibers and Waveguides, Optics Letters (Accessed May 18, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created November 19, 1999, Updated October 12, 2021