Design and implementation of fiber lenses for ultra-small probes used in biomedical imaging

Youxin Mao; Shoude Chang; Sherif Sherif; Costel Flueraru

doi:10.1117/12.754725

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8 January 2008 Design and implementation of fiber lenses for ultra-small probes used in biomedical imaging

Youxin Mao; Shoude Chang; Sherif Sherif; Costel Flueraru

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Proceedings Volume 6826, Optics in Health Care and Biomedical Optics III; 68261A (2008) https://doi.org/10.1117/12.754725
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

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, and 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

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