Research Papers

Comparative study of optical sources in the near infrared for optical coherence tomography applications

[+] Author Affiliations
Lionel Carrion, Michel Lestrade, Zhiqiang Xu, Gaby Touma, Romain Maciejko

École Polytechnique de Montréal, Department of Engineering Physics, Optoelectronics Laboratory, P.O. Box 6079, Station “Centre-ville” , Montréal, Québec H3C 3A7 Canada

Michel Bertrand

École Polytechnique de Montréal, Institute of Biomedical Engineering, P.O. Box 6079, Station “Centre-ville” , Montréal, Québec H3C 3A7 Canada

J. Biomed. Opt. 12(1), 014017 (February 23, 2007). doi:10.1117/1.2710242
History: Received March 07, 2006; Revised July 27, 2006; Accepted October 01, 2006; Published February 23, 2007
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Optical coherence tomography (OCT) is a powerful, noninvasive biomedical technique that uses low-coherence light sources to obtain in-depth scans of biological tissues. We report results obtained with three different sources emitting at 1570, 1330, and 810nm, respectively. Attenuation and backscattering measurements are obtained with these sources for several in vitro biological tissues. From these measurements, we use a graphical method to make comparisons of the penetration depth and backscattering intensity of each wavelength for the studied samples. The influence of the coherence length of each source is also taken into account in order to make a more relevant comparison.

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© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Lionel Carrion ; Michel Lestrade ; Zhiqiang Xu ; Gaby Touma ; Romain Maciejko, et al.
"Comparative study of optical sources in the near infrared for optical coherence tomography applications", J. Biomed. Opt. 12(1), 014017 (February 23, 2007). ; http://dx.doi.org/10.1117/1.2710242


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