title: Comparative study of optical sources in the near infrared for optical coherence tomography applications.
abstract: 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 810 nm, 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.
authors.affiliation: Ecole Polytechnique de Montréal, Department of Engineering Physics, Optoelectronics Laboratory, P.O. Box 6079, Station Centre-ville, Montréal, Québec H3C 3A7 Canada. lionel.carrion@polymtl.ca
authors.forename: Lionel
authors.initials: L
authors.lastname: Carrion
authors.forename: Michel
authors.initials: M
authors.lastname: Lestrade
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Xu
authors.forename: Gaby
authors.initials: G
authors.lastname: Touma
authors.forename: Romain
authors.initials: R
authors.lastname: Maciejko
authors.forename: Michel
authors.initials: M
authors.lastname: Bertrand
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D008029:Lighting / Q000295:instrumentation* / Q000379:methods; D019047:Phantoms, Imaging; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013055:Spectrophotometry, Infrared / Q000295:instrumentation* / Q000379:methods; D041623:Tomography, Optical Coherence / Q000295:instrumentation* / Q000379:methods