High-precision, high-accuracy ultralong-range swept-source optical coherence tomography using vertical cavity surface emitting laser light source

I. Grulkowski, J. J. Liu, B. Potsaid, V. Jayaraman, J. Jiang, J. G. Fujimoto, and A. E. Cable

Optics Letters, vol. 38, no. 5, pp. 673–675, Mar. 2013 (publisher’s site);


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Figures from the paper:

OCT full eye length measurement

OCT full eye length measurement

15cm post measurement

15cm post measurement

Cylindrical Lens Thickness Measurement

Cylindrical Lens Thickness Measurement

Abstract:

We demonstrate ultra long-range swept-source optical coherence tomography (OCT) imaging using vertical cavity surface emitting laser (VCSEL) technology. The ability to adjust laser parameters and high-speed acquisition enables imaging ranges from a few centimeters up to meters using the same instrument.

We discuss the challenges of long-range OCT imaging. In vivo human-eye imaging and optical component characterization are presented. The precision and accuracy of OCT-based measurements are assessed and are important for ocular biometry and reproducible intraocular distance measurement before cataract surgery.

Additionally, meter-range measurement of fiber length and multicentimeter-range imaging are reported. 3D visualization supports a class of industrial imaging applications of OCT.

 

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