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Proceedings Paper

Signal simulation and signal processing for multiple reference optical coherence tomography
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Paper Abstract

The generation of a synthetic MR-OCT signal is presented and compared to a real acquired signal. Multiple reference optical coherence tomography (MR-OCT) is a novel time-domain interferometric system. The MR-OCT principle is adding a partial mirror to extend the axial scan range, which effectively extends the scan depth for imaging. The actuation of the scan mirror required for time-domain OCT, was demonstrated to operate with a low cost miniature voice coil, such as a speaker extracted from a smartphone or CD/DVD pick-up system. Building a compact and cost-effective optical imaging system will enable affordable medical diagnosis at low-resource setting applications. The partial mirror recirculates multiple reflections (orders) into the interferometric system and the increase of optical path delay does increase the beat frequency of the interference signal. The synthesis of such an interference signal using a numerical method is described in this manuscript.

Paper Details

Date Published: 2 March 2015
PDF: 7 pages
Proc. SPIE 9312, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIX, 931236 (2 March 2015); doi: 10.1117/12.2080994
Show Author Affiliations
Kai Neuhaus, National Univ. of Ireland, Galway (Ireland)
Hrebesh Subhash, National Univ. of Ireland, Galway (Ireland)
Roshan Dsouza, National Univ. of Ireland, Galway (Ireland)
Josh Hogan, Compact Imaging, Inc. (United States)
Carol Wilson, Compact Imaging, Inc. (United States)
Martin Leahy, National Univ. of Ireland, Galway (Ireland)
Royal College of Surgeons (Ireland)

Published in SPIE Proceedings Vol. 9312:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XIX
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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