15 February 2017 Single lens system for forward-viewing navigation and scanning side-viewing optical coherence tomography
Author Affiliations +
Proceedings Volume 10040, Endoscopic Microscopy XII; 100400H (2017); doi: 10.1117/12.2271555
Event: SPIE BiOS, 2017, San Francisco, California, United States
Abstract
The optical design for a dual modality endoscope based on piezo scanning fiber technology is presented including a novel technique to combine forward-viewing navigation and side viewing OCT. Potential applications include navigating body lumens such as the fallopian tube, biliary ducts and cardiovascular system. A custom cover plate provides a rotationally symmetric double reflection of the OCT beam to deviate and focus the OCT beam out the side of the endoscope for cross-sectional imaging of the tubal lumen. Considerations in the choice of the scanning fiber are explored and a new technique to increase the divergence angle of the scanning fiber to improve system performance is presented. Resolution and the necessary scanning density requirements to achieve Nyquist sampling of the full image are considered. The novel optical design lays the groundwork for a new approach integrating side-viewing OCT into multimodality endoscopes for small lumen imaging. KEYWORDS:
Conference Presentation
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Tyler H. Tate, Davis McGregor, Jennifer K. Barton, "Single lens system for forward-viewing navigation and scanning side-viewing optical coherence tomography", Proc. SPIE 10040, Endoscopic Microscopy XII, 100400H (15 February 2017); doi: 10.1117/12.2271555; http://dx.doi.org/10.1117/12.2271555
PROCEEDINGS
12 PAGES + PRESENTATION

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KEYWORDS
Optical coherence tomography

Endoscopes

Navigation systems

Optical design

GRIN lenses

Lens design

Reflectivity

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