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Proceedings Paper

Ultrahigh-resolution tethered OCT endoscopic capsule at 800 nm (Conference Presentation)
Author(s): Kaiyan Li; Jessica Mavadia-Shukla; Wenxuan Liang; Xingde Li

Paper Abstract

We present an ultrahigh-resolution, distal-scanning OCT capsule operating at 800 nm targeted towards gastrointestinal tract imaging. Among many others, one significant challenge in the 800-nm OCT capsule technology is the severe chromatic aberration in the imaging optics of the capsule. By combining commercial miniature lenses and customized diffractive lens, the achromatic focal shift was essentially eliminated (i.e. down to ~1 µm) over a 3dB spectral bandwidth of ~150 nm centered around 825 nm. We have achieved an axial resolution ~2.7 µm. Initial proof-of-concept experiments with ex vivo pig esophagus demonstrated the excellent imaging performance of this 800-nm OCT capsule.

Paper Details

Date Published: 19 April 2017
PDF: 1 pages
Proc. SPIE 10053, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI, 1005308 (19 April 2017); doi: 10.1117/12.2254877
Show Author Affiliations
Kaiyan Li, Johns Hopkins Univ. (United States)
Jessica Mavadia-Shukla, Johns Hopkins Univ. (United States)
Wenxuan Liang, Johns Hopkins Univ. (United States)
Xingde Li, Johns Hopkins Univ. (United States)


Published in SPIE Proceedings Vol. 10053:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXI
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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