An approach to the measurement of the nonlinear refractive index of very short lengths of optical fibers

A method for the measurement of the nonlinear-refractive index coefficient in single-mode optical fibers is presented. It takes advantage of the high sensitivity of the acousto-optic interaction effect in optical fibers to the fiber properties. Direct measurement of the nonlinear-refractive index ch...

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Bibliographic Details
Published in:Applied physics letters 2018-07, Vol.113 (1)
Main Authors: Rivera–Pérez, E., Carrascosa, A., Díez, A., Alcusa-Sáez, E. P., Andrés, M. V.
Format: Article
Language:English
Subjects:
Acousto-optics
Applied physics
Interferometry
Optical fibers
Optical properties
Phase modulation
Phase transitions
Refractivity
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Summary:A method for the measurement of the nonlinear-refractive index coefficient in single-mode optical fibers is presented. It takes advantage of the high sensitivity of the acousto-optic interaction effect in optical fibers to the fiber properties. Direct measurement of the nonlinear-refractive index change resulting from cross-phase modulation between a probe and a pump signal is obtained from the fiber's acousto-optic interaction performance. It is a non-interferometric method in which a very short length of fiber (
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5035146