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Two-Dimensional FEM Analysis Of Brillouin Gain Spectra In Acoustic Guiding And Acoustic Antiguiding Single Mode Optical Fibers

Y.S. Mamdem[4], X. Pheron[2], F.Taillade[3], Y. Jaouën[4], R. Gabet[4], V. Lanticq[1,3], G. Moreau[1], A. Boukenter[5], Y. Ouerdane[5], S. Lesoille[3], and J. Bertrand[2]
[1]EDF R&D, Chatou, France
[2]ANDRA, Chatenay-Malabry, France
[3]LCPC, Paris, France
[4]Telecom ParisTech, Paris, France
[5]Laboratoire Hubert Curien, Saint-Etienne, France
Veröffentlicht in 2010

We present a full modal -analysis of optical and acoustic properties based on two-dimensional finite-element method (2D-FEM) for Brillouin Gain spectrum (BGS) determination in optical fibers with COMSOL. This model enables us to predict precisely the BGS of any kind of silica fiber knowing well the geometry of doping composition. The results of numerical modeling have shown good agreement in comparison with measured Brillouin spectra for different types of fibers.

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