From master slave interferometry to complex master slave interferometry: theoretical work

Rivet, Sylvain and Bradu, Adrian and Maria, Michael and Feuchter, Thomas and Leick, Lasse and Podoleanu, Adrian G.H. (2018) From master slave interferometry to complex master slave interferometry: theoretical work. In: Podoleanu, Adrian G.H. and Bang, Ole, eds. Proceedings of SPIE. Proceedings of the 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources. SPIE ISBN 978-1-5106-1674-5. (doi:https://doi.org/10.1117/12.2303761) (Full text available)

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Abstract

A general theoretical framework is described to obtain the advantages and the drawbacks of two novel Fourier Domain Optical Coherence Tomography (OCT) methods denoted as Master/Slave Interferometry (MSI) and its extension denoted as Complex Master/Slave Interferometry (CMSI). Instead of linearizing the digital data representing the channeled spectrum before a Fourier transform can be applied to it (as in OCT standard methods), channeled spectrum is decomposed on the basis of local oscillations. This replaces the need for linearization, generally time consuming, before any calculation of the depth profile in the range of interest. In this model two functions, g and h, are introduced. The function g describes the modulation chirp of the channeled spectrum signal due to nonlinearities in the decoding process from wavenumber to time. The function h describes the dispersion in the interferometer. The utilization of these two functions brings two major improvements to previous implementations of the MSI method. The paper details the steps to obtain the functions g and h, and represents the CMSI in a matrix formulation that enables to implement easily this method in LabVIEW by using parallel programming with multi-cores.

Item Type: Conference or workshop item (Proceeding)
Uncontrolled keywords: Optical coherence tomography; Medical optics instrumentation; Multiple imaging; Ophthalmic optics and devices
Subjects: Q Science > QC Physics > QC355 Optics
Divisions: Faculties > Sciences > School of Physical Sciences
Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Adrian Bradu
Date Deposited: 12 Mar 2018 09:29 UTC
Last Modified: 14 Mar 2018 11:15 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/66346 (The current URI for this page, for reference purposes)
Podoleanu, Adrian G.H.: https://orcid.org/0000-0002-4899-9656
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