Abstract
We are developing the next generation of optical fibres for endoscopic imaging and sensing. Our imaging fibre bundle is fabricated from OM1 PCVD graded index preforms made for the telecommunications market. Whilst having a lower numerical aperture, the performance of the imaging fibre is shown to be comparable to the current state-of-the-art commercial microendoscopy fibres. In addition, we are developing negative-curvature optical fibres, which exhibit ultra-low silica Raman background. Measuring Raman spectra through an optical fibre is usually complicated by the high intrinsic Raman scatter of the fibre material. Common solutions such as the use of multiple fibres and distal optics are complex and bulky. The single hollow core negative curvature fibre is used for Raman and surface-enhanced Raman spectroscopy sensing with no distal optics while showing a 1000x background reduction compared to conventional fibres.
Original language | English |
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Title of host publication | 21st International Conference on Transparent Optical Networks, ICTON 2019 |
Publisher | IEEE |
ISBN (Electronic) | 9781728127798 |
DOIs | |
Publication status | Published - Jul 2019 |
Event | 21st International Conference on Transparent Optical Networks, ICTON 2019 - Angers, France Duration: 9 Jul 2019 → 13 Jul 2019 |
Publication series
Name | International Conference on Transparent Optical Networks |
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Volume | 2019-July |
ISSN (Electronic) | 2162-7339 |
Conference
Conference | 21st International Conference on Transparent Optical Networks, ICTON 2019 |
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Country/Territory | France |
City | Angers |
Period | 9/07/19 → 13/07/19 |
Funding
We would also like to thank the support of IRC (Proteus) and the UK Engineering and Physical Sciences Research Council (EP/K03197X/1 and EP/S001123/1)
Keywords
- Endoscopic imaging
- Optical fibres
- Raman spectroscopy
ASJC Scopus subject areas
- Computer Networks and Communications
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials
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Raman confocal microscope RENISHAM INVIA
Material and Chemical Characterisation (MC2)Facility/equipment: Equipment