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Proceedings Paper

Fiber probes used in optical coherence tomography
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Paper Abstract

Quality and parameters of probing optical beams are extremely important in optical coherence tomography (OCT) systems both for image quality and light coupling efficiency considerations. For example, the shape, size, focal position, and focal range of such beams could have a great impact on the lateral resolution, penetration depth, and signal-to-noise ratio of the image. We present a design, construction and characterization of different variations of GRIN and ball fiber lenses, for ultra-small OCT probes. Those fiber probes are made of a single mode fiber and a GRIN or ball fiber lens with or without a fiber spacer between them. The probe diameters are smaller than 0.3 mm. We discuss design methods, fabrication techniques, and measured performance compared with modeling results. We demonstrate swept-source OCT images with different fiber probes.

Paper Details

Date Published: 12 August 2008
PDF: 9 pages
Proc. SPIE 7099, Photonics North 2008, 70990A (12 August 2008); doi: 10.1117/12.807442
Show Author Affiliations
Youxin Mao, National Research Council Canada (Canada)
Shoude Chang, National Research Council Canada (Canada)
Sherif Sherif, National Research Council Canada (Canada)
Costel Flueraru, National Research Council Canada (Canada)

Published in SPIE Proceedings Vol. 7099:
Photonics North 2008

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