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Long axial range swept-source OCT instrument enhanced by complex master-slave processing
Author(s): Manuel J. Marques; Adrian Bradu; Sylvain Rivet; Adrian Podoleanu
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Paper Abstract

We report on the use of the Complex Master-Slave (CMS) method to obtain a long axial range in a sweptsource OCT system, well above the axial range limit imposed by the k-clock of the optical source. This is achieved without the need for software-based k-domain re-sampling or employing an additional Mach-Zehnder interferometer providing a stable k-clock signal to the digitizer board. An imaging range of over 17 mm is reported in each case using a commercially available swept source from either Axsun and Santec operating in the 1 μm region, with a 100 kHz repetition rate, which is about three times the range achievable using either source’s built-in k-clock. We have also analyzed the impact the digitization has on the axial range and resolution of the system.

Paper Details

Date Published: 22 February 2019
PDF: 6 pages
Proc. SPIE 10867, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII, 108672T (22 February 2019); doi: 10.1117/12.2508638
Show Author Affiliations
Manuel J. Marques, Univ. of Kent (United Kingdom)
Adrian Bradu, Univ. of Kent (United Kingdom)
Sylvain Rivet, Univ. de Bretagne Occidentale (France)
Adrian Podoleanu, Univ. of Kent (United Kingdom)

Published in SPIE Proceedings Vol. 10867:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII
James G. Fujimoto; Joseph A. Izatt, Editor(s)

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