Temperature compensated, humidity insensitive, high-Tg TOPAS FBGs for accelerometers and microphones

Alessio Stefani (Invited author), W. Yuan (Invited author), C. Markos (Invited author), Henrik K. Rasmussen (Invited author), S. Andresen (Invited author), R. Guastavino (Invited author), F. K. Nielsen (Invited author), B. Rose (Invited author), O. Jespersen (Invited author), N. Herholdt-Rasmussen (Invited author), Ole Bang (Invited author)

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    Abstract

    In this paper we present our latest work on Fiber Bragg Gratings (FBGs) in microstructured polymer optical fibers (mPOFs) and their application as strain sensing transducers in devices, such as accelerometers and microphones. We demonstrate how the cross-sensitivity of the FBG to temperature is eliminated by using dual-FBG technology and how mPOFs fabricated from different grades of TOPAS with glass transition temperatures around 135 degrees C potentially allow high-temperature humidity insensitive operation. The results bring the mPOF FBG closer to being a viable technology for commercial applications requiring high sensitivity due to the low Young's Modulus of polymer.
    Original languageEnglish
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Volume8421
    Pages (from-to)84210Y
    Number of pages10
    ISSN0277-786X
    DOIs
    Publication statusPublished - 2012
    Event22nd International Conference on Optical Fiber Sensors (OFS 2012) - Beijing, China
    Duration: 15 Oct 201219 Oct 2012
    Conference number: 22
    http://www.ofs-22.org/site/

    Conference

    Conference22nd International Conference on Optical Fiber Sensors (OFS 2012)
    Number22
    Country/TerritoryChina
    CityBeijing
    Period15/10/201219/10/2012
    Internet address

    Keywords

    • FBG
    • mPOF
    • High-Tg
    • Sensors
    • Accelerometer
    • Microphone

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