5 March 2018 From master slave interferometry to complex master slave interferometry: theoretical work
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Proceedings Volume 10591, 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources; 105910U (2018) https://doi.org/10.1117/12.2303761
Event: Second Canterbury Conference on Optical Coherence Tomography, 2017, Canterbury, United Kingdom
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.
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Sylvain Rivet, Sylvain Rivet, Adrian Bradu, Adrian Bradu, Michael Maria, Michael Maria, Thomas Feuchter, Thomas Feuchter, Lasse Leick, Lasse Leick, Adrian Podoleanu, Adrian Podoleanu, } "From master slave interferometry to complex master slave interferometry: theoretical work", Proc. SPIE 10591, 2nd Canterbury Conference on OCT with Emphasis on Broadband Optical Sources, 105910U (5 March 2018); doi: 10.1117/12.2303761; https://doi.org/10.1117/12.2303761
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