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

doi:10.1117/12.2227588

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/Published conference output › Conference publication

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 language	English
Title of host publication	Micro-Structured and Specialty Optical Fibres IV
Editors	Kyriacos Kalli, Alexis Mendez
Place of Publication	Bellingham, WA (US)
Publisher	SPIE
Number of pages	6
ISBN (Print)	978-1-5106-0131-4
DOIs	https://doi.org/10.1117/12.2227588
Publication status	Published - 27 Apr 2016
Event	Micro-Structured and Specialty Optical Fibres IV - Brussels, Belgium Duration: 4 Apr 2016 → 6 Apr 2016

Publication series

Name	SPIE Proceedings
Publisher	SPIE
Volume	9886
ISSN (Print)	0277-786X
ISSN (Electronic)	2410-9045

Conference

Conference	Micro-Structured and Specialty Optical Fibres IV
Country/Territory	Belgium
City	Brussels
Period	4/04/16 → 6/04/16

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

Access to Document

10.1117/12.2227588

Microstructured polymer optical fibre sensors for opto-acoustic endoscopy
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
Final published version, 445 KB

http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2519506

Cite this

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title = "Microstructured polymer optical fibre sensors for opto-acoustic endoscopy",

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.",

keywords = "biomedical applications, endoscopy, fibre sensors, polymer optical fibre, polymer optical fibre sensors, ultrasound",

author = "Christian Broadway and Daniel Gallego and Andreas Pospori and Michal Zubel and Webb, {David J.} and Kate Sugden and Guillermo Carpintero and Horacio Lamela",

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 ; Micro-Structured and Specialty Optical Fibres IV ; Conference date: 04-04-2016 Through 06-04-2016",

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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 et al.
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/Published conference output › Conference publication

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Microstructured polymer optical fibre sensors for opto-acoustic endoscopy

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

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