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Proceedings Paper

Flexible A-scan rate MHz OCT: computational downscaling by coherent averaging
Author(s): Tom Pfeiffer; Wolfgang Wieser; Thomas Klein; Markus Petermann; Jan-Phillip Kolb; Matthias Eibl; Robert Huber
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Paper Abstract

In order to realize fast OCT-systems with adjustable line rate, we investigate averaging of image data from an FDML based MHz-OCT-system. The line rate can be reduced in software and traded in for increased system sensitivity and image quality. We compare coherent and incoherent averaging to effectively scale down the system speed of a 3.2 MHz FDML OCT system to around 100 kHz in postprocessing. We demonstrate that coherent averaging is possible with MHz systems without special interferometer designs or digital phase stabilisation. We show OCT images of a human finger knuckle joint in vivo with very high quality and deep penetration.

Paper Details

Date Published: 7 April 2016
PDF: 5 pages
Proc. SPIE 9697, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX, 96970S (7 April 2016); doi: 10.1117/12.2214788
Show Author Affiliations
Tom Pfeiffer, Univ. zu Lübeck (Germany)
Wolfgang Wieser, Optores GmbH (Germany)
Thomas Klein, Optores GmbH (Germany)
Markus Petermann, Ludwig-Maximilians-Univ. München (Germany)
Optores GmbH (Germany)
Jan-Phillip Kolb, Univ. zu Lübeck (Germany)
Matthias Eibl, Univ. zu Lübeck (Germany)
Robert Huber, Univ. zu Lübeck (Germany)
Optores GmbH (Germany)

Published in SPIE Proceedings Vol. 9697:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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