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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 16 — Jun. 1, 2010
  • pp: 3140–3149

High-velocity-flow imaging with real-time Doppler optical coherence tomography

Richard Villey, Lionel Carrion, Dominic Morneau, Caroline Boudoux, and Roman Maciejko  »View Author Affiliations


Applied Optics, Vol. 49, Issue 16, pp. 3140-3149 (2010)
http://dx.doi.org/10.1364/AO.49.003140


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Abstract

We present a real-time time-domain Doppler optical coherence tomography (OCT) system based on the zero-crossing method for velocity measurements of fluid flows with attainable velocities up to 10 m / s . In the current implementation, one-dimensional and two-dimensional velocity profiles of fluid flows ranging from 1 cm / s to more than 3 m / s were obtained for both laminar and turbulent flows. The line rate was approximately 500 Hz , and the images were treated in real time. This approach has the advantage of providing reliable velocity maps free from phase aliasing or other artifacts common to several OCT systems. The system is particularly well suited for investigating complex velocity profiles, especially in the presence of steep velocity gradients.

© 2010 Optical Society of America

OCIS Codes
(100.2000) Image processing : Digital image processing
(170.3340) Medical optics and biotechnology : Laser Doppler velocimetry
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: March 25, 2010
Manuscript Accepted: April 30, 2010
Published: May 31, 2010

Virtual Issues
Vol. 5, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Richard Villey, Lionel Carrion, Dominic Morneau, Caroline Boudoux, and Roman Maciejko, "High-velocity-flow imaging with real-time Doppler optical coherence tomography," Appl. Opt. 49, 3140-3149 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-16-3140

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