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Linearly configured BOCDA system using a differential measurement scheme

We experimentally demonstrate a linearly configured Brillouin optical correlation domain analysis (BOCDA) system enhanced by a differential measurement scheme. On-off control of the pump phase modulation with an intentional loss at the end of a fiber under test is applied for the acquisition of a Br...

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Bibliographic Details
Published in:Optics express 2014-01, Vol.22 (2), p.1467-1473
Main Authors: Jeong, Ji Ho, Chung, Kyu Hwang, Lee, Sang Bae, Song, Kwang Yong, Jeong, Je-Myung, Lee, Kwanil
Format: Article
Language:English
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Summary:We experimentally demonstrate a linearly configured Brillouin optical correlation domain analysis (BOCDA) system enhanced by a differential measurement scheme. On-off control of the pump phase modulation with an intentional loss at the end of a fiber under test is applied for the acquisition of a Brillouin gain spectrum. This application leads to a four-fold enhancement of the spatial resolution and doubling of the measurement range in comparison with the former system under the same modulation parameters.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.22.001467