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Proceedings Paper

Analysis on the influence of intrinsic thermal stress on Brillouin gain spectra in optical fibers
Author(s): Weiwen Zou; Zuyuan He; Kazuo Hotate
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Paper Abstract

We investigate the influence of the intrinsic thermal stress in optical fibers on their Brillouin gain spectra (BGS). We apply our newly-proposed modal analysis based on two-dimensional finite element method (2D-FEM) to a single-mode optical fiber (SMF) and a PANDA polarization-maintaining fiber (PMF) that are drawn from preforms of the same design except the stress applying parts in PMF. We evaluate both the optical and the acoustic effective velocities and their corresponding fields, and then quantify the BGS of the fibers. The BGS of the two fibers are measured for comparison and the measured results are in good agreement with the calculated ones. The difference in the feature of BGS between the two fibers is found dominantly originated from the effect upon the acoustic velocity due to 2D intrinsic thermal stress in the PMF.

Paper Details

Date Published: 20 October 2006
PDF: 8 pages
Proc. SPIE 6371, Photonic Sensing Technologies, 637104 (20 October 2006); doi: 10.1117/12.685888
Show Author Affiliations
Weiwen Zou, Univ. of Tokyo (Japan)
Zuyuan He, Univ. of Tokyo (Japan)
Kazuo Hotate, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 6371:
Photonic Sensing Technologies
Michael A. Marcus; Brian Culshaw; John P. Dakin, Editor(s)

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