Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement

Orr, Philip and Perry, Marcus and Fusiek, Grzegorz and Niewczas, Pawel (2013) Solid-state interferometric interrogator and multiplexer for high-speed dynamic and absolute FBG wavelength measurement. In: Proceedings of SPIE Volume 8794. SPIE--The International Society for Optical Engineering., POL. ISBN 9780819496348

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    Abstract

    We present a solid-state FBG array interrogator and multiplexer capable of determining absolute FBG wavelengths and of providing high-speed, high-resolution static and dynamic measurements. Using a described procedure, deployable on multiplexing passive-interferometric schemes, the system is able to determine initial sensor wavelengths and thereafter track wavelength changes with interferometric resolution. The scheme allows high-resolution interrogation of FBG sensor arrays to be applied to many industrial applications, where previously the lack of combined absolute and quasi-static wavelength measurement precluded the use of interferometric techniques. Using a preliminary laboratory embodiment, we demonstrate a wavelength determination accuracy of <0.3 nm and a measurement resolution of 10 fm/√Hz, and propose pathways to improved performance and miniaturisation.

    Author(s):Orr, Philip, Perry, Marcus ORCID logoORCID: https://orcid.org/0000-0001-9173-8198, Fusiek, Grzegorz ORCID logoORCID: https://orcid.org/0000-0002-3361-7803 and Niewczas, Pawel ORCID logoORCID: https://orcid.org/0000-0003-3291-1725
    Item type:Book Section
    ID code:43200
    Keywords:interferometric interrogator , multiplexer, FBG wavelength measurement, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:14 Mar 2013 12:10
    Last modified:25 Jan 2020 02:22
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/43200
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