Fiber probes used in optical coherence tomography

Youxin Mao; Shoude Chang; Sherif Sherif; Costel Flueraru

doi:10.1117/12.807442

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12 August 2008 Fiber probes used in optical coherence tomography

Youxin Mao, Shoude Chang, Sherif Sherif, Costel Flueraru

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Proceedings Volume 7099, Photonics North 2008; 70990A (2008) https://doi.org/10.1117/12.807442
Event: Photonics North 2008, 2008, Montréal, Canada

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.

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Youxin Mao, Shoude Chang, Sherif Sherif, and Costel Flueraru "Fiber probes used in optical coherence tomography", Proc. SPIE 7099, Photonics North 2008, 70990A (12 August 2008); https://doi.org/10.1117/12.807442

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