1 June 2011 Design and development of a galvanometer inspired dual beam optical coherence tomography system for flow velocity quantification of the microvasculature
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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.
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S. M. Daly, S. M. Daly, E. Jonathan, E. Jonathan, M. J. Leahy, M. J. Leahy, "Design and development of a galvanometer inspired dual beam optical coherence tomography system for flow velocity quantification of the microvasculature", Proc. SPIE 8091, Optical Coherence Tomography and Coherence Techniques V, 809121 (1 June 2011); doi: 10.1117/12.889099; https://doi.org/10.1117/12.889099
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