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Proceedings Paper

Full-field optical coherence tomography system implemented with fiber-optic components
Author(s): Seung Suk Lee; Joo Ha Kim; Eun Seo Choi
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Paper Abstract

We have presented full-field optical coherence tomography(FF-OCT) system implemented with fiber optics. Usually FFOCT system illuminates large area at once while conventional OCT system irradiates light at single focal point. From these reason, light guidance with single fiber waveguide is not proper in FF-OCT system and fiber-optic components is not dealt in the system implementation. In this paper, we demonstrate FF-OCT system implemented with fiber-optics, where fiber coupler and fiber-optic circulator were used to perform the function of beam splitting and optical delay line. Each arm of fiber coupler acts as reference arm and sample arm. Fiber-optic collimator and metal-coated mirror mounted on translator in the reference arm could adjust optical path length properly. Separated beam after the fiber coupler was combined after bulk beam combiner, where beam size at fiber end is expanded by large fiber-optic collimator and then illuminated to sample. The larger size beam reflected from sample was interfered with reference beam, which experienced optical delay in the reference arm. The utilization of fiber-optic components could provide merits such as easiness in optical alignment and reduction of sensitiveness to external vibration and perturbation.

Paper Details

Date Published: 20 February 2014
PDF: 5 pages
Proc. SPIE 8938, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV, 89381B (20 February 2014); doi: 10.1117/12.2038727
Show Author Affiliations
Seung Suk Lee, Chosun Univ. (Korea, Republic of)
Joo Ha Kim, Chosun Univ. (Korea, Republic of)
Eun Seo Choi, Chosun Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 8938:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XIV
Israel Gannot, Editor(s)

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