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Complex master-slave for long axial range swept-source optical coherence tomography

Marques, M.J., Rivet, Sylvain, Bradu, Adrian, Podoleanu, Adrian G.H. (2018) Complex master-slave for long axial range swept-source optical coherence tomography. OSA Continuum, 1 (4). pp. 1251-1259. ISSN 2578-7519. E-ISSN 2578-7519. (doi:10.1364/OSAC.1.001251)

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https://doi.org/10.1364/OSAC.1.001251

Abstract

Using complex master-slave interferometry, we demonstrate extended axial range optical coherence tomography for two commercially available swept sources, well beyond the limit imposed by their k-clocks. This is achieved without k-domain re-sampling and without engaging any additional Mach-Zehnder interferometer providing a k-clock signal to the digitizer. An axial imaging range exceeding 17 mm with an attenuation of less than 30 dB is reported using two commercially available swept sources operating at 1050 nm and a 100 kHz repetition rate. This procedure has more than trebled the range achievable using the k-clock signal provided by the manufacturers. An analysis is presented on the impact that the digitization has on the axial range and resolution of the system.

Item Type: Article
DOI/Identification number: 10.1364/OSAC.1.001251
Subjects: Q Science > QC Physics > QC355 Optics
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Manuel Jorge Marques
Date Deposited: 03 Dec 2018 10:09 UTC
Last Modified: 30 May 2019 08:26 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/70569 (The current URI for this page, for reference purposes)
Marques, M.J.: https://orcid.org/0000-0002-7509-0704
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