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Fast information acquisition using spectra subtraction for Brillouin distributed fiber sensors

Fast information acquisition using spectra subtraction for Brillouin distributed fiber sensors
Fast information acquisition using spectra subtraction for Brillouin distributed fiber sensors

The traditional methods of extracting sensing information of a Brillouin distributed sensor is by curve fitting the Brillouin gain profiles along the fiber, we propose two concise and time-saving methods to process signals from only the frequency shifted section(s) of the fiber by subtracting the original spectrum from the sensing Brillouin spectrum. Experimental results validate that our methods can provide up to over 9 times faster information acquisition for a 10 km sensing fiber with 800 m frequency shifted section comparing with the traditional way. The proposed methods could be potentially attractive in getting information for the Brillouin distributed sensors as well as the Raman and Rayleigh distributed sensors especially when the processing speed is concerned.

1094-4087
9696-9704
Yu, Kuanglu
869f980a-2499-478c-b196-2c2788dbae9c
Guo, Nan
0e291c53-6db0-4edb-931d-df2e11aa7bc0
Cao, Zhiyuan
64e4aa5d-011a-4702-b6b6-ac92b9217982
Lou, Shuwei
1ae7e74e-75c5-4d2e-a300-5ef59232a8fd
Shang, Chao
a25d2e3b-c20e-4cd2-8149-553bf4be26ee
He, Jing
b66c81f0-2d9b-449e-adc8-f88f7a038c7e
Yu, Kuanglu
869f980a-2499-478c-b196-2c2788dbae9c
Guo, Nan
0e291c53-6db0-4edb-931d-df2e11aa7bc0
Cao, Zhiyuan
64e4aa5d-011a-4702-b6b6-ac92b9217982
Lou, Shuwei
1ae7e74e-75c5-4d2e-a300-5ef59232a8fd
Shang, Chao
a25d2e3b-c20e-4cd2-8149-553bf4be26ee
He, Jing
b66c81f0-2d9b-449e-adc8-f88f7a038c7e

Yu, Kuanglu, Guo, Nan, Cao, Zhiyuan, Lou, Shuwei, Shang, Chao and He, Jing (2019) Fast information acquisition using spectra subtraction for Brillouin distributed fiber sensors. Optics Express, 27 (7), 9696-9704. (doi:10.1364/OE.27.009696).

Record type: Article

Abstract

The traditional methods of extracting sensing information of a Brillouin distributed sensor is by curve fitting the Brillouin gain profiles along the fiber, we propose two concise and time-saving methods to process signals from only the frequency shifted section(s) of the fiber by subtracting the original spectrum from the sensing Brillouin spectrum. Experimental results validate that our methods can provide up to over 9 times faster information acquisition for a 10 km sensing fiber with 800 m frequency shifted section comparing with the traditional way. The proposed methods could be potentially attractive in getting information for the Brillouin distributed sensors as well as the Raman and Rayleigh distributed sensors especially when the processing speed is concerned.

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Accepted/In Press date: 19 February 2019
e-pub ahead of print date: 21 March 2019
Published date: 1 April 2019

Identifiers

Local EPrints ID: 430604
URI: http://eprints.soton.ac.uk/id/eprint/430604
ISSN: 1094-4087
PURE UUID: 2bf040e2-cd21-41b0-b1de-651c89bf9528

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Date deposited: 07 May 2019 16:30
Last modified: 19 Jul 2019 16:34

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