Multipoint sensing with a low-coherence source using single-arm frequency-shifted interferometry

Zhang, Yiwei; Ye, Fei; Qi, Bing; Qian, Li

doi:10.1364/AO.55.005526

Title: Multipoint sensing with a low-coherence source using single-arm frequency-shifted interferometry

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Abstract

We demonstrate that multiple-site sensing along an optical fiber can be done with incoherent continuous-wave light. Here, using a broadband low-coherence noise source, a slow detector, and an optical modulator, we construct a single-arm frequency-shifted interferometer (SA-FSI) capable of simultaneously sensing multiple weak-reflection sites distributed either in parallel or in series along fiber links. By scanning the driving frequency of an electro-optic amplitude modulator in the range of 2.7–3.2 GHz at steps of 41.7 KHz, we demonstrate a spatial resolution of 0.3 m and a measurement range of over 1 km.

Authors:

Zhang, Yiwei ^[1]; Ye, Fei ^[1];

^[1]; Qian, Li ^[1]

Univ. of Toronto, ON (Canada). Dept. of Electrical and Computer Engineering

Publication Date:: Tue Jul 12 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE; Natural Sciences and Engineering Research Council of Canada (NSERC)

OSTI Identifier:: 1408610

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Applied Optics

Additional Journal Information:: Journal Volume: 55; Journal Issue: 21; Journal ID: ISSN 0003-6935

Publisher:: Optical Society of America (OSA)

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION; 36 MATERIALS SCIENCE; Fiber optics sensors; Fiber optics; Multiplexing

Citation Formats


                    Zhang, Yiwei, Ye, Fei, Qi, Bing, and Qian, Li. Multipoint sensing with a low-coherence source using single-arm frequency-shifted interferometry.  United States: N. p., 2016. 
Web.  doi:10.1364/AO.55.005526.

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                    Zhang, Yiwei, Ye, Fei, Qi, Bing, & Qian, Li. Multipoint sensing with a low-coherence source using single-arm frequency-shifted interferometry.  United States.  https://doi.org/10.1364/AO.55.005526

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                    Zhang, Yiwei, Ye, Fei, Qi, Bing, and Qian, Li. Tue .  
"Multipoint sensing with a low-coherence source using single-arm frequency-shifted interferometry".  United States.  https://doi.org/10.1364/AO.55.005526.  https://www.osti.gov/servlets/purl/1408610.

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@article{osti_1408610,

  title        = {Multipoint sensing with a low-coherence source using single-arm frequency-shifted interferometry},

  author       = {Zhang, Yiwei and Ye, Fei and Qi, Bing and Qian, Li},

  abstractNote = {We demonstrate that multiple-site sensing along an optical fiber can be done with incoherent continuous-wave light. Here, using a broadband low-coherence noise source, a slow detector, and an optical modulator, we construct a single-arm frequency-shifted interferometer (SA-FSI) capable of simultaneously sensing multiple weak-reflection sites distributed either in parallel or in series along fiber links. By scanning the driving frequency of an electro-optic amplitude modulator in the range of 2.7–3.2 GHz at steps of 41.7 KHz, we demonstrate a spatial resolution of 0.3 m and a measurement range of over 1 km.},

  doi          = {10.1364/AO.55.005526},

  journal      = {Applied Optics},

  number       = 21,

  volume       = 55,

  place        = {United States},

  year         = {Tue Jul 12 00:00:00 EDT 2016},

  month        = {Tue Jul 12 00:00:00 EDT 2016}

}

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