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Long axial range swept-source OCT instrument enhanced by Complex Master-Slave processing

Marques, M.J., Bradu, Adrian, Rivet, Sylvain, Podoleanu, Adrian G.H. (2019) Long axial range swept-source OCT instrument enhanced by Complex Master-Slave processing. In: Progress in Biomedical Optics and Imaging. Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII. Proceedings of SPIE , 20 (17). SPIE ISBN 978-1-5106-2376-7. (doi:10.1117/12.2508638) (KAR id:73189)

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We report on the use of the Complex Master-Slave (CMS) method to obtain a long axial range in a swept-source 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.

Item Type: Conference or workshop item (Proceeding)
DOI/Identification number: 10.1117/12.2508638
Subjects: Q Science > QC Physics > QC355 Optics
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Manuel Marques
Date Deposited: 25 Mar 2019 09:27 UTC
Last Modified: 16 Feb 2021 14:03 UTC
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Marques, M.J.:
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