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

Fingerprint

Polymer Optical Fiber
Endoscopy
Plastic optical fibers
Optical Fiber Sensor
Fiber optic sensors
Acoustics
electromagnetic interference
optical fibers
Detector
Fiber
Polymethyl Methacrylate
Signal interference
Detectors
Silica
Silicon Dioxide
Sensor
fibers
acoustics
Fibers
sensors

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

Cite this

Broadway, C., Gallego, D., Pospori, A., Zubel, M., Webb, D. J., Sugden, K., ... 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). Bellingham, WA (US): SPIE. https://doi.org/10.1117/12.2227588
Broadway, Christian ; Gallego, Daniel ; Pospori, Andreas ; Zubel, Michal ; Webb, David J. ; Sugden, Kate ; Carpintero, Guillermo ; Lamela, Horacio. / Microstructured polymer optical fibre sensors for opto-acoustic endoscopy. Micro-Structured and Specialty Optical Fibres IV. editor / Kyriacos Kalli ; Alexis Mendez. Bellingham, WA (US) : SPIE, 2016. (SPIE Proceedings).
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Broadway, C, Gallego, D, Pospori, A, Zubel, M, Webb, DJ, 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, Bellingham, WA (US), Micro-Structured and Specialty Optical Fibres IV, Brussels, Belgium, 4/04/16. https://doi.org/10.1117/12.2227588

Microstructured polymer optical fibre sensors for opto-acoustic endoscopy. / Broadway, Christian; Gallego, Daniel; Pospori, Andreas; Zubel, Michal; Webb, David J.; Sugden, Kate; Carpintero, Guillermo; Lamela, Horacio.

Micro-Structured and Specialty Optical Fibres IV. ed. / Kyriacos Kalli; Alexis Mendez. Bellingham, WA (US) : SPIE, 2016. 98860S (SPIE Proceedings; Vol. 9886).

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

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KW - biomedical applications

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Broadway C, Gallego D, Pospori A, Zubel M, Webb DJ, Sugden K et al. Microstructured polymer optical fibre sensors for opto-acoustic endoscopy. In Kalli K, Mendez A, editors, Micro-Structured and Specialty Optical Fibres IV. Bellingham, WA (US): SPIE. 2016. 98860S. (SPIE Proceedings). https://doi.org/10.1117/12.2227588