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Proceedings Paper

Towards combined optical coherence tomography and hyper-spectral imaging for gastrointestinal endoscopy
Author(s): Xavier Attendu; Camille Crunelle; Martin Poinsinet de Sivry-Houle; Billie Maubois; Joanie Urbain; Chloe Turrell; Mathias Strupler; Nicolas Godbout; Caroline Boudoux
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Paper Abstract

Previous works have demonstrated feasibility of combining optical coherence tomography (OCT) and hyper-spectral imaging (HSI) through a single double-clad fiber (DCF). In this proceeding we present the continued development of a system combining both modalities and capable of rapid imaging. We discuss the development of a rapidly scanning, dual-band, polygonal swept-source system which combines NIR (1260-1340 nm) and visible (450-800 nm) wavelengths. The NIR band is used for OCT imaging while visible light allows HSI. Scanning rates up to 24 kHz are reported. Furthermore, we present and discuss the fiber system used for light transport, delivery and collection, and the custom signal acquisition software. Key points include the use of a double-clad fiber coupler as well as important alignments and back-reflection management. Simultaneous and co-registered imaging with both modalities is presented in a bench-top system

Paper Details

Date Published: 23 April 2018
PDF: 8 pages
Proc. SPIE 10487, Multimodal Biomedical Imaging XIII, 1048707 (23 April 2018);
Show Author Affiliations
Xavier Attendu, Ecole Polytechnique de Montréal (Canada)
Camille Crunelle, Ecole Polytechnique de Montréal (Canada)
Martin Poinsinet de Sivry-Houle, Ecole Polytechnic de Montreal (Canada)
Billie Maubois, Ecole Polytechnique de Montréal (Canada)
Joanie Urbain, Ecole Polytechnique de Montréal (Canada)
Chloe Turrell, Ecole Polytechnique de Montréal (Canada)
Mathias Strupler, Ecole Polytechnique de Montréal (Canada)
Nicolas Godbout, Ecole Polytechnique de Montréal (Canada)
Castor Optics (Canada)
Caroline Boudoux, Ecole Polytechnique de Montréal (Canada)
Castor Optics (Canada)

Published in SPIE Proceedings Vol. 10487:
Multimodal Biomedical Imaging XIII
Fred S. Azar; Xavier Intes, Editor(s)

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