Differential measurement scheme for Brillouin Optical Correlation Domain Analysis

Title
Differential measurement scheme for Brillouin Optical Correlation Domain Analysis
Authors
정지호이관일송광용정제명이상배
Issue Date
2012-11
Publisher
Optics express
Citation
VOL 19, NO 24, 27094-27101
Abstract
We newly propose and experimentally demonstrate a differential measurement scheme for Brillouin optical correlation domain analysis, where the difference between Brillouin gain spectra constructed by a normal and a phase-modulated Brillouin pump waves are analyzed to measure local Brillouin frequencies in optical fibers. In experiments, a fivefold enhancement in the spatial resolution is obtained compared to an ordinary BOCDA system under the same modulation parameters, as a result of the improved dynamic range by the suppression of background noises.
URI
http://pubs.kist.re.kr/handle/201004/44069
ISSN
10944087
Appears in Collections:
KIST Publication > Article
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