14 February 2018 Snapshot polarization-sensitive plug-in optical module for a Fourier-domain optical coherence tomography system
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Abstract
In this communication, we present a proof-of-concept polarization-sensitive Optical Coherence Tomography (PS-OCT) which can be used to characterize the retardance and the axis orientation of a linear birefringent sample. This module configuration is an improvement from our previous work1, 2 since it encodes the two polarization channels on the optical path difference, effectively carrying out the polarization measurements simultaneously (snapshot measurement), whilst retaining all the advantages (namely the insensitivity to environmental parameters when using SM fibers) of these two previous configurations. Further progress consists in employing Master Slave OCT technology,3 which is used to automatically compensate for the dispersion mismatch introduced by the elements in the module. This is essential given the encoding of the polarization states on two different optical path lengths, each of them having dissimilar dispersive properties. By utilizing this method instead of the commonly used re-linearization and numerical dispersion compensation methods an improvement in terms of the calculation time required can be achieved.
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Manuel J. Marques, Manuel J. Marques, Sylvain Rivet, Sylvain Rivet, Adrian Bradu, Adrian Bradu, Adrian Podoleanu, Adrian Podoleanu, } "Snapshot polarization-sensitive plug-in optical module for a Fourier-domain optical coherence tomography system", Proc. SPIE 10483, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXII, 104832K (14 February 2018); doi: 10.1117/12.2291502; https://doi.org/10.1117/12.2291502
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