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Proceedings Paper

Design and development of a galvanometer inspired dual beam optical coherence tomography system for flow velocity quantification of the microvasculature
Author(s): S. M. Daly; E. Jonathan; M. J. Leahy
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Paper Abstract

This paper reports initial experimentation of a dual beam flow velocity estimation setup based on optical coherence tomography (OCT) for biomedical applications. The proposed work incorporates a low cost switching mechanism (rotating galvanometer mirror) for optical signal discrimination between adjacent fiber channels enabling quasisimultaneous multiple specimen scanning. A cascaded interferometric design is used with two sample output arms orientated in parallel to eachother. A cross-correlation computation between these two parallel sample beams yields a relative time delay, enabling assessment and quantification of flow velocities.

Paper Details

Date Published: 1 June 2011
PDF: 12 pages
Proc. SPIE 8091, Optical Coherence Tomography and Coherence Techniques V, 809121 (1 June 2011); doi: 10.1117/12.889099
Show Author Affiliations
S. M. Daly, Univ. of Limerick (Ireland)
E. Jonathan, Univ. of Limerick (Ireland)
M. J. Leahy, Univ. of Limerick (Ireland)
Royal College of Surgeons (Ireland)

Published in SPIE Proceedings Vol. 8091:
Optical Coherence Tomography and Coherence Techniques V
Rainer A. Leitgeb; Brett E. Bouma, Editor(s)

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