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Title: Discrimination of Temperature and Strain in Brillouin Optical Time Domain Analysis Using a Multicore Optical Fiber

Abstract

Brillouin optical time domain analysis is the sensing of temperature and strain changes along an optical fiber by measuring the frequency shift changes of Brillouin backscattering. Because frequency shift changes are a linear combination of temperature and strain changes, their discrimination is a challenge. Here, a multicore optical fiber that has two cores is fabricated. The differences between the cores’ temperature and strain coefficients are such that temperature (strain) changes can be discriminated with error amplification factors of 4.57 °C/MHz (69.11 μϵ /MHz), which is 2.63 (3.67) times lower than previously demonstrated. As proof of principle, using the multicore optical fiber and a commercial Brillouin optical time domain analyzer, the temperature (strain) changes of a thermally expanding metal cylinder are discriminated with an error of 0.24% (3.7%).

Authors:
 [1];  [1];  [2];  [3];  [3];  [2];  [2];  [1]
+ Show Author Affiliations
  1. Univ. of Pittsburgh, PA (United States). Dept. of Electrical and Computer Engineering
  2. NEC Laboratories America, Inc., Princeton, NJ (United States). Optical Networking and Sensing Dept.
  3. Corning Research and Development Corp., Corning, NY (United States)
Publication Date:
Research Org.:
Univ. of Pittsburgh, PA (United States); Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1628553
Grant/Contract Number:  
FE0029063; SC014664; M3CA-14-PA-PITT-0702-0320
Resource Type:
Accepted Manuscript
Journal Name:
Sensors
Additional Journal Information:
Journal Volume: 18; Journal Issue: 4; Journal ID: ISSN 1424-8220
Publisher:
MDPI AG
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; Chemistry; Engineering; Instruments & Instrumentation; fiber optics sensors; Brillouin Scattering; optical time domain reflectometry; fiber characterization

Citation Formats

Zaghloul, Mohamed, Wang, Mohan, Milione, Giovanni, Li, Ming-Jun, Li, Shenping, Huang, Yue-Kai, Wang, Ting, and Chen, Kevin. Discrimination of Temperature and Strain in Brillouin Optical Time Domain Analysis Using a Multicore Optical Fiber. United States: N. p., 2018. Web. doi:10.3390/s18041176.
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Zaghloul, Mohamed, Wang, Mohan, Milione, Giovanni, Li, Ming-Jun, Li, Shenping, Huang, Yue-Kai, Wang, Ting, & Chen, Kevin. Discrimination of Temperature and Strain in Brillouin Optical Time Domain Analysis Using a Multicore Optical Fiber. United States. https://doi.org/10.3390/s18041176
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Zaghloul, Mohamed, Wang, Mohan, Milione, Giovanni, Li, Ming-Jun, Li, Shenping, Huang, Yue-Kai, Wang, Ting, and Chen, Kevin. Sun . "Discrimination of Temperature and Strain in Brillouin Optical Time Domain Analysis Using a Multicore Optical Fiber". United States. https://doi.org/10.3390/s18041176. https://www.osti.gov/servlets/purl/1628553.
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@article{osti_1628553,
title = {Discrimination of Temperature and Strain in Brillouin Optical Time Domain Analysis Using a Multicore Optical Fiber},
author = {Zaghloul, Mohamed and Wang, Mohan and Milione, Giovanni and Li, Ming-Jun and Li, Shenping and Huang, Yue-Kai and Wang, Ting and Chen, Kevin},
abstractNote = {Brillouin optical time domain analysis is the sensing of temperature and strain changes along an optical fiber by measuring the frequency shift changes of Brillouin backscattering. Because frequency shift changes are a linear combination of temperature and strain changes, their discrimination is a challenge. Here, a multicore optical fiber that has two cores is fabricated. The differences between the cores’ temperature and strain coefficients are such that temperature (strain) changes can be discriminated with error amplification factors of 4.57 °C/MHz (69.11 μϵ /MHz), which is 2.63 (3.67) times lower than previously demonstrated. As proof of principle, using the multicore optical fiber and a commercial Brillouin optical time domain analyzer, the temperature (strain) changes of a thermally expanding metal cylinder are discriminated with an error of 0.24% (3.7%).},
doi = {10.3390/s18041176},
journal = {Sensors},
number = 4,
volume = 18,
place = {United States},
year = {Sun Apr 01 00:00:00 EDT 2018},
month = {Sun Apr 01 00:00:00 EDT 2018}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.3390/s18041176
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Works referenced in this record:

Recent Progress in Brillouin Scattering Based Fiber Sensors
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[INVITED] State of the art of Brillouin fiber-optic distributed sensing
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journal, December 2016

Recent Progress in Brillouin Scattering Based Fiber Sensors
journal, April 2011

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    Works referencing / citing this record:

    Towards athermal Brillouin strain sensing based on heavily germania-doped core optical fibers
    journal, March 2019

    • Deroh, M.; Sylvestre, T.; Chretien, J.
    • APL Photonics, Vol. 4, Issue 3
    • DOI: 10.1063/1.5085640

    On-line monitoring of sealing glass in electrical penetration assembly based on femto-laser inscribed fiber Bragg grating sensors
    journal, January 2019

    • Fan, Zhichun; Diao, Xingzhong; Liu, Malin
    • Optics Express, Vol. 27, Issue 2
    • DOI: 10.1364/oe.27.000608

    Recent Advances in Brillouin Optical Time Domain Reflectometry
    journal, April 2019

    • Bai, Qing; Wang, Qinglin; Wang, Dong
    • Sensors, Vol. 19, Issue 8
    • DOI: 10.3390/s19081862

    Recent Advances in Brillouin Optical Time Domain Reflectometry
    journal, April 2019

    • Bai, Qing; Wang, Qinglin; Wang, Dong
    • Sensors, Vol. 19, Issue 8
    • DOI: 10.3390/s19081862
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