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Measurement of pump induced refractive index change in Er3+ doped fiber by two-mode interferometry

Published online by Cambridge University Press:  15 July 1998

A. Saïssy*
Affiliation:
Laboratoire de Physique de la Matière Condensée (CNRS-UMR 6622), Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex, France
N. Azami
Affiliation:
Laboratoire de Physique de la Matière Condensée (CNRS-UMR 6622), Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex, France
J. Jones
Affiliation:
Laboratoire de Physique de la Matière Condensée (CNRS-UMR 6622), Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex, France
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Abstract

We α present and demonstrate a method to determine the refractive index and absorption changes in a two mode fiber interferometer. Measurement on the 632 nm transitions in Er3+ silica fiber shows that refractive index and absorption changes result from ground and excited state transitions respectively. The GSA/ESA cross-sections ratio was found to be 14.

Keywords

Type
Rapid Communication
Copyright
© EDP Sciences, 1998

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