Fully-distributed fiber-optic sensing based on acoustically-induced long-period grating

Dorothy Y. Wang, Yunmiao Wang, Ming Han, Jianmin Gong, Anbo Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper gives a review of a proposed fully-distributed fiber-optic sensing technique based on a traveling long-period grating (LPG) in a single-mode optical fiber. The LPG is generated by pulsed acoustic waves that propagate along the fiber. Based on this platform, first we demonstrated the fully-distributed temperature measurement in a 2.5m fiber. Then by coating the fiber with functional coatings, we demonstrated fully-distributed biological and chemical sensing. In the biological sensing experiment, immunoglobulin G (IgG) was immobilized onto the fiber surface, and we showed that only specific antigen-antibody binding can introduce a measurable shift in the transmission optical spectrum of the traveling LPG when it passes through the pretreated fiber segment. In the hydrogen sensing experiment, the fiber was coated with a platinum (Pt) catalyst layer, which is heated by the thermal energy released from Pt-assisted combustion of H2 and O2, and the resulted temperature change gives rise to a measurable LPG wavelength shift when the traveling LPG passes through. Hydrogen concentration from 1% to 3.8% was detected in the experiment. This technique may also permit measurement of other quantities by changing the functional coating on the fiber; therefore it is expected to be capable of other fully-distributed sensing applications.

Original languageEnglish (US)
Title of host publicationPhotonic Microdevices/Microstructures for Sensing III
DOIs
StatePublished - Jul 25 2011
EventPhotonic Microdevices/Microstructures for Sensing III - Orlando, FL, United States
Duration: Apr 27 2011Apr 28 2011

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8034
ISSN (Print)0277-786X

Conference

ConferencePhotonic Microdevices/Microstructures for Sensing III
CountryUnited States
CityOrlando, FL
Period4/27/114/28/11

Fingerprint

Long Period Grating
Fiber Optics
Fiber optics
fiber optics
Sensing
Fiber
gratings
fibers
Fibers
Coating
Platinum
coatings
Coatings
Hydrogen
platinum
Distributed Sensing
Experiment
Immunoglobulin
Experiments
shift

Keywords

  • Acousto-optics
  • Distributed sensing
  • Long period grating
  • Optical fibers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Wang, D. Y., Wang, Y., Han, M., Gong, J., & Wang, A. (2011). Fully-distributed fiber-optic sensing based on acoustically-induced long-period grating. In Photonic Microdevices/Microstructures for Sensing III [80340F] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8034). https://doi.org/10.1117/12.887923

Fully-distributed fiber-optic sensing based on acoustically-induced long-period grating. / Wang, Dorothy Y.; Wang, Yunmiao; Han, Ming; Gong, Jianmin; Wang, Anbo.

Photonic Microdevices/Microstructures for Sensing III. 2011. 80340F (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8034).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wang, DY, Wang, Y, Han, M, Gong, J & Wang, A 2011, Fully-distributed fiber-optic sensing based on acoustically-induced long-period grating. in Photonic Microdevices/Microstructures for Sensing III., 80340F, Proceedings of SPIE - The International Society for Optical Engineering, vol. 8034, Photonic Microdevices/Microstructures for Sensing III, Orlando, FL, United States, 4/27/11. https://doi.org/10.1117/12.887923
Wang DY, Wang Y, Han M, Gong J, Wang A. Fully-distributed fiber-optic sensing based on acoustically-induced long-period grating. In Photonic Microdevices/Microstructures for Sensing III. 2011. 80340F. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.887923
Wang, Dorothy Y. ; Wang, Yunmiao ; Han, Ming ; Gong, Jianmin ; Wang, Anbo. / Fully-distributed fiber-optic sensing based on acoustically-induced long-period grating. Photonic Microdevices/Microstructures for Sensing III. 2011. (Proceedings of SPIE - The International Society for Optical Engineering).
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