| Issue |
Eur. Phys. J. AP
Volume 3, Number 1, July 1998
|
|
|---|---|---|
| Page(s) | 5 - 8 | |
| DOI | https://doi.org/10.1051/epjap:1998197 | |
| Published online | 15 July 1998 | |
https://doi.org/10.1051/epjap:1998197
Measurement of pump induced refractive index change in Er3+ doped fiber by two-mode interferometry
Laboratoire de Physique de la Matière
Condensée (CNRS-UMR 6622), Université
de Nice-Sophia Antipolis, Parc Valrose,
06108 Nice Cedex, France
Corresponding author: saissy@naxos.unice.fr
Received:
30
October
1997
Revised:
15
April
1998
Accepted:
30
April
1998
Published online: 15 July 1998
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.
PACS: 42.81.-i – Fiber optics / 07.60.Ly – Interferometers
© EDP Sciences, 1998
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