Microstructured polymer optical fibre sensors for opto-acoustic endoscopy

Christian Broadway, Daniel Gallego, Andreas Pospori, Michal Zubel, David J. Webb, Kate Sugden, Guillermo Carpintero, Horacio Lamela

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

Abstract

Opto-acoustic imaging is a growing field of research in recent years, providing functional imaging of physiological biomarkers, such as the oxygenation of haemoglobin. Piezo electric transducers are the industry standard detector for ultrasonics, but their limited bandwidth, susceptibility to electromagnetic interference and their inversely proportional sensitivity to size all affect the detector performance. Sensors based on polymer optical fibres (POF) are immune to electromagnetic interference, have lower acoustic impedance and a reduced Young's Modulus compared to silica fibres. Furthermore, POF enables the possibility of a wideband sensor and a size appropriate to endoscopy. Micro-structured POF (mPOF) used in an interferometric detector has been shown to be an order of magnitude more sensitive than silica fibre at 1 MHz and 3 times more sensitive at 10 MHz. We present the first opto-acoustic measurements obtained using a 4.7mm PMMA mPOF Bragg grating with a fibre diameter of 130 μm and present the lateral directivity pattern of a PMMA mPOF FBG ultrasound sensor over a frequency range of 1-50 MHz. We discuss the impact of the pattern with respect to the targeted application and draw conclusions on how to mitigate the problems encountered.

Original languageEnglish
Title of host publicationMicro-Structured and Specialty Optical Fibres IV
EditorsKyriacos Kalli, Alexis Mendez
Place of PublicationBellingham, WA (US)
PublisherSPIE
Number of pages6
ISBN (Print)978-1-5106-0131-4
DOIs
Publication statusPublished - 27 Apr 2016
EventMicro-Structured and Specialty Optical Fibres IV - Brussels, Belgium
Duration: 4 Apr 20166 Apr 2016

Publication series

NameSPIE Proceedings
PublisherSPIE
Volume9886
ISSN (Print)0277-786X
ISSN (Electronic)2410-9045

Conference

ConferenceMicro-Structured and Specialty Optical Fibres IV
CountryBelgium
CityBrussels
Period4/04/166/04/16

Bibliographical note

-Christian Broadway; Daniel Gallego; Andreas Pospori; Michal Zube ; David J. Webb; Kate Sugden; Guillermo Carpintero and Horacio Lamela; "Microstructured polymer optical fibre sensors for opto-acoustic endoscopy", Proc. SPIE 9886, Micro-Structured and Specialty Optical Fibres IV, 98860S (April 27, 2016)

Copyright 2016. 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.

DOI: http://dx.doi.org/10.1117/12.2227588

Keywords

  • biomedical applications
  • endoscopy
  • fibre sensors
  • polymer optical fibre
  • polymer optical fibre sensors
  • ultrasound

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  • Research Output

    • 4 Conference contribution

    Effects in ultrafast laser micromachining PMMA-based optical fibre grating

    Liu, C., Chen, X., Cardoso, M. R., Zhang, W. & Webb, D. J., 27 Apr 2016, Micro-Structured and Specialty Optical Fibres IV. Kalli, K. & Mendez, A. (eds.). Bellingham, WA (US): SPIE, 6 p. 98861O. (SPIE Proceedings; vol. 9886).

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

    Open Access
    File
  • Embedding silica and polymer fibre Bragg gratings (FBG) in plastic 3D-printed sensing patches

    Zubel, M. G., Sugden, K., Webb, D. J., Sáez-Rodríguez, D., Nielsen, K. & Bang, O., 27 Apr 2016, Micro-Structured and Specialty Optical Fibres IV. Kalli, K. & Mendez, A. (eds.). Bellingham, WA (US): SPIE, 12 p. 98860N. (SPIE Proceedings; vol. 9886).

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

    Open Access
    File
  • Fibre Bragg gratings fabrication in four core fibres

    Wang, C., Yan, Z., Sun, Q., Sun, Z., Mou, C., Zhang, J., Badmos, A. & Zhang, L., 27 Apr 2016, Micro-Structured and Specialty Optical Fibres IV. Kalli, K. & Mendez, A. (eds.). Bellingham, WA (US): SPIE, 9 p. 98860H. (SPIE Proceedings; vol. 9886).

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

    Open Access
    File
  • Cite this

    Broadway, C., Gallego, D., Pospori, A., Zubel, M., Webb, D. J., Sugden, K., Carpintero, G., & Lamela, H. (2016). Microstructured polymer optical fibre sensors for opto-acoustic endoscopy. In K. Kalli, & A. Mendez (Eds.), Micro-Structured and Specialty Optical Fibres IV [98860S] (SPIE Proceedings; Vol. 9886). SPIE. https://doi.org/10.1117/12.2227588