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8 January 2008Design and implementation of fiber lenses for ultra-small probes used in biomedical imaging
Quality and parameters of probing optical beams are extremely important in biomedical imaging 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 in
optical coherence tomography. We present a design, construction and characterization of different variations of GRIN
and ball fiber lenses, which were recently proposed for ultra-small biomedical imaging probes. Those fiber lens modules
are made of a single mode fiber and a GRIN or ball fiber lens with or without a fiber spacer between them. The lens
diameters are smaller than 0.3 mm. We discuss design methods, fabrication techniques, and measured performance
compared with modeling results.
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Youxin Mao, Shoude Chang, Sherif Sherif, Costel Flueraru, "Design and implementation of fiber lenses for ultra-small probes used in biomedical imaging," Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 68261A (8 January 2008); https://doi.org/10.1117/12.754725