Abstract
Abstract
A cost-effective method for estimating the Brillouin frequency shift (BFS) of the whole sensing fiber without using an electrical spectrum analyzer is developed. The Brillouin gain spectrum is down-converted and low-pass-filtered, and its total transmitted power is used to estimate the BFS. The strain dynamic range of this method is experimentally shown to be double the value of a conventional slope-assisted method.
Funder
Konica Minolta Imaging Science Foundation
Takahashi Industrial and Economic Research Foundation
Yazaki Memorial Foundation for Science and Technology
Japan Society for the Promotion of Science
Subject
General Physics and Astronomy,General Engineering
Cited by
3 articles.
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