Direct continuous-wave measurement of n2 in various types of telecommunication fiber at 155 μm
- 15 December 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (24) , 1966-1968
- https://doi.org/10.1364/ol.21.001966
Abstract
A method for measuring the nonlinear refractive index of optical fibers with an error of less than 5% is demonstrated. The technique is based on measuring the nonlinear phase shift experienced by a dual-frequency beat signal, permitting a simple, highly sensitive, accurate, repeatable, and easily automated measurement procedure and sampling. Measurements of the nonlinear coefficient in standard telecommunication, dispersion-shifted, and a number of dispersion-compensated fibers are presented.Keywords
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