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20 October 2006 Analysis on the influence of intrinsic thermal stress on Brillouin gain spectra in optical fibers
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Proceedings Volume 6371, Photonic Sensing Technologies; 637104 (2006) https://doi.org/10.1117/12.685888
Event: Optics East 2006, 2006, Boston, Massachusetts, United States
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.
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Weiwen Zou, Zuyuan He, and Kazuo Hotate "Analysis on the influence of intrinsic thermal stress on Brillouin gain spectra in optical fibers", Proc. SPIE 6371, Photonic Sensing Technologies, 637104 (20 October 2006); https://doi.org/10.1117/12.685888
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