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Single lens system for forward-viewing navigation and scanning side-viewing optical coherence tomography

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.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/624390
Date15 February 2017
CreatorsTate, Tyler H., McGregor, Davis, Barton, Jennifer K.
ContributorsUniv Arizona, Coll Opt Sci, Univ Arizona, Biomed Engn, College of Optical Sciences, The Univ. of Arizona (United States), The Univ. of Arizona (United States), College of Optical Sciences, The Univ. of Arizona (United States)
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Source SetsUniversity of Arizona
LanguageEnglish
Detected LanguageEnglish
TypeArticle
Rights© 2017 SPIE
Relationhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2271555

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