Characterized Brillouin scattering in silica optical fiber tapers based on Brillouin optical correlation domain analysis
Author(s) -
Weiwen Zou,
Wenning Jiang,
Jianping Chen
Publication year - 2013
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.006497
Subject(s) - brillouin scattering , optics , brillouin zone , materials science , optical fiber , fiber , double clad fiber , fiber optic sensor , graded index fiber , physics , composite material
This paper demonstrates stimulated Brillouin scattering (SBS) characterization in silica optical fiber tapers drawn from commercial single mode optical fibers by hydrogen flame. They have different waist diameters downscaled from 5 μm to 42 μm. The fully-distributed SBS measurement along the fiber tapers is implemented by Brillouin optical correlation domain analysis technique with millimeter spatial resolution. It is found that the Brillouin frequency shift (BFS) in the waist of all fiber tapers is approximately the same (i.e., ~11.17 GHz at 1550 nm). However, the BFS is gradually reduced and the Brillouin gain decreases from the waist to the untapered zone in each fiber taper.
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