Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement

Gordon M. H. Flockhart, Geoffrey A. Cranch, Clay K. Kirkendall

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

4 Citations (Scopus)

Abstract

We report interferometric interrogation of fiber Bragg gratings in separate cores of a multicore fiber for high resolution quasi-static and dynamic bend measurements. Two axis curvature measurements are made by measuring the differential strain between three FBG sensors formed in a singlemode four-core fiber using a common interrogating interferometer. Therefore a measurement of the differential phase from each FBG yields the differential strain and compensates for the common-mode random drift of the interrogating interferometer. A DC curvature accuracy of 3.4 x 10(-3) m(-1), and an AC curvature resolution of 1.2 x 10(-4) m(-1)/Hz(1/2) are reported.
LanguageEnglish
Title of host publicationSmart Structures and Materials 2006
Subtitle of host publicationSmart Sensor Monitoring Systems and Applications
EditorsD Inaudi, W Ecke, B Culshaw, KJ Peters, E Udd
Place of PublicationBellingham
Number of pages10
DOIs
Publication statusPublished - 2006
EventSmart Structures and Materials 2006 Conference - San Diego, United States
Duration: 27 Feb 20062 Mar 2006

Publication series

NameProceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE)
PublisherSPIE
Volume6167
ISSN (Print)0277-786X

Conference

ConferenceSmart Structures and Materials 2006 Conference
CountryUnited States
CitySan Diego
Period27/02/062/03/06

Fingerprint

Bragg gratings
Interferometers
Fibers
Fiber Bragg gratings
Sensors

Keywords

  • phase tracking
  • multicore
  • optical fiber sensor
  • fiber Bragg grating
  • interterometry
  • curvature measurement
  • Bragg gratings

Cite this

Flockhart, G. M. H., Cranch, G. A., & Kirkendall, C. K. (2006). Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement. In D. Inaudi, W. Ecke, B. Culshaw, KJ. Peters, & E. Udd (Eds.), Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications [616701] (Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE); Vol. 6167). Bellingham. https://doi.org/10.1117/12.657576
Flockhart, Gordon M. H. ; Cranch, Geoffrey A. ; Kirkendall, Clay K. / Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement. Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications. editor / D Inaudi ; W Ecke ; B Culshaw ; KJ Peters ; E Udd. Bellingham, 2006. (Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE)).
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title = "Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement",
abstract = "We report interferometric interrogation of fiber Bragg gratings in separate cores of a multicore fiber for high resolution quasi-static and dynamic bend measurements. Two axis curvature measurements are made by measuring the differential strain between three FBG sensors formed in a singlemode four-core fiber using a common interrogating interferometer. Therefore a measurement of the differential phase from each FBG yields the differential strain and compensates for the common-mode random drift of the interrogating interferometer. A DC curvature accuracy of 3.4 x 10(-3) m(-1), and an AC curvature resolution of 1.2 x 10(-4) m(-1)/Hz(1/2) are reported.",
keywords = "phase tracking, multicore, optical fiber sensor, fiber Bragg grating, interterometry, curvature measurement, Bragg gratings",
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Flockhart, GMH, Cranch, GA & Kirkendall, CK 2006, Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement. in D Inaudi, W Ecke, B Culshaw, KJ Peters & E Udd (eds), Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications., 616701, Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE), vol. 6167, Bellingham, Smart Structures and Materials 2006 Conference, San Diego, United States, 27/02/06. https://doi.org/10.1117/12.657576

Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement. / Flockhart, Gordon M. H.; Cranch, Geoffrey A.; Kirkendall, Clay K.

Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications. ed. / D Inaudi; W Ecke; B Culshaw; KJ Peters; E Udd. Bellingham, 2006. 616701 (Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE); Vol. 6167).

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

TY - GEN

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N2 - We report interferometric interrogation of fiber Bragg gratings in separate cores of a multicore fiber for high resolution quasi-static and dynamic bend measurements. Two axis curvature measurements are made by measuring the differential strain between three FBG sensors formed in a singlemode four-core fiber using a common interrogating interferometer. Therefore a measurement of the differential phase from each FBG yields the differential strain and compensates for the common-mode random drift of the interrogating interferometer. A DC curvature accuracy of 3.4 x 10(-3) m(-1), and an AC curvature resolution of 1.2 x 10(-4) m(-1)/Hz(1/2) are reported.

AB - We report interferometric interrogation of fiber Bragg gratings in separate cores of a multicore fiber for high resolution quasi-static and dynamic bend measurements. Two axis curvature measurements are made by measuring the differential strain between three FBG sensors formed in a singlemode four-core fiber using a common interrogating interferometer. Therefore a measurement of the differential phase from each FBG yields the differential strain and compensates for the common-mode random drift of the interrogating interferometer. A DC curvature accuracy of 3.4 x 10(-3) m(-1), and an AC curvature resolution of 1.2 x 10(-4) m(-1)/Hz(1/2) are reported.

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KW - optical fiber sensor

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Flockhart GMH, Cranch GA, Kirkendall CK. Differential phase tracking applied to Bragg gratings in multicore fiber for high accuracy curvature measurement. In Inaudi D, Ecke W, Culshaw B, Peters KJ, Udd E, editors, Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications. Bellingham. 2006. 616701. (Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE)). https://doi.org/10.1117/12.657576