23 April 2018 Towards combined optical coherence tomography and hyper-spectral imaging for gastrointestinal endoscopy
Author Affiliations +
Proceedings Volume 10487, Multimodal Biomedical Imaging XIII; 1048707 (2018) https://doi.org/10.1117/12.2288772
Event: SPIE BiOS, 2018, San Francisco, California, United States
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
Conference Presentation
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Xavier Attendu, Xavier Attendu, Camille Crunelle, Camille Crunelle, Martin Poinsinet de Sivry-Houle, Martin Poinsinet de Sivry-Houle, Billie Maubois, Billie Maubois, Joanie Urbain, Joanie Urbain, Chloe Turrell, Chloe Turrell, Mathias Strupler, Mathias Strupler, Nicolas Godbout, Nicolas Godbout, Caroline Boudoux, Caroline Boudoux, } "Towards combined optical coherence tomography and hyper-spectral imaging for gastrointestinal endoscopy", Proc. SPIE 10487, Multimodal Biomedical Imaging XIII, 1048707 (23 April 2018); doi: 10.1117/12.2288772; https://doi.org/10.1117/12.2288772

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