Polymer Optical Fibre Sensors for Endoscopic Opto-Acoustic Imaging

Christian Broadway, Daniel Gallego, Getinet Woyessa, Andreas Pospori, Ole Bang, David J. Webb, Guillermo Carpintero, Horacio Lamela

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    Opto-acoustic imaging (OAI) shows particular promise for in-vivo biomedical diagnostics. Its applications include cardiovascular, gastrointestinal and urogenital systems imaging. Opto-acoustic endoscopy (OAE) allows the imaging of body parts through cavities permitting entry. The critical parameter is the physical size of the device, allowing compatibility with current technology, while governing flexibility of the distal end of the endoscope based on the needs of the sensor. Polymer optical fibre (POF) presents a novel approach for endoscopic applications and has been positively discussed and compared in existing publications. A great advantage can be obtained for endoscopy due to a small size and array potential to provide discrete imaging speed improvements. Optical fibre exhibits numerous advantages over conventional piezo-electric transducers, such as immunity from electromagnetic interference and a higher resolution at small sizes. Furthermore, micro structured polymer optical fibres offer over 12 times the sensitivity of silica fibre. We present a polymer fibre Bragg grating ultrasound detector with a core diameter of 125 microns. We discuss the ultrasonic signals received and draw conclusions on the opportunities and challenges of applying this technology in biomedical applications.
    Original languageEnglish
    Title of host publicationProceedings of SPIE
    Number of pages7
    PublisherSPIE - International Society for Optical Engineering
    Publication date2015
    Article number953907
    ISBN (Print)9781628417043
    Publication statusPublished - 2015
    EventOpto-Acoustic Methods and Applications in Biophotonics II - München, Germany
    Duration: 22 Jun 201523 Jun 2015


    ConferenceOpto-Acoustic Methods and Applications in Biophotonics II
    SeriesProceedings of the SPIE - The International Society for Optical Engineering

    Bibliographical note

    Copyright 2015 Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


    • Polymer Optical Fibre Sensors
    • Fibre Sensors
    • Polymer Optical Fibre
    • Endoscopy
    • Biomedical Applications
    • Opto-Acoustic Imaging


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