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Research Papers

Swept source optical coherence tomography using an all-fiber 1300‐nm ring laser source

[+] Author Affiliations
Michael A. Choma

Duke University, Department of Biomedical Engineering, 136 Hudson Hall, Durham, North Carolina 27708

Kevin Hsu

Micron Optics, Incorporated, Atlanta, Georgia 30345

Joseph A. Izatt

Duke University, Department of Biomedical Engineering, Durham, North Carolina 27708

J. Biomed. Opt. 10(4), 044009 (July 15, 2005). doi:10.1117/1.1961474
History: Received July 20, 2004; Revised February 28, 2005; Accepted March 02, 2005; Published July 15, 2005
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The increased sensitivity of spectral domain optical coherence tomography (OCT) has driven the development of a new generation of technologies in OCT, including rapidly tunable, broad bandwidth swept laser sources and spectral domain OCT interferometer topologies. In this work, the operation of a turnkey 1300nm swept laser source is demonstrated. This source has a fiber ring cavity with a semiconductor optical amplifier gain medium. Intracavity mode selection is achieved with an in-fiber tunable fiber Fabry-Perot filter. A novel optoelectronic technique that allows for even sampling of the swept source OCT signal in k space also is described. A differential swept source OCT system is presented, and images of in vivo human cornea and skin are presented. Lastly, the effects of analog-to-digital converter aliasing on image quality in swept source OCT are discussed.

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© 2005 Society of Photo-Optical Instrumentation Engineers

Citation

Michael A. Choma ; Kevin Hsu and Joseph A. Izatt
"Swept source optical coherence tomography using an all-fiber 1300‐nm ring laser source", J. Biomed. Opt. 10(4), 044009 (July 15, 2005). ; http://dx.doi.org/10.1117/1.1961474


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