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Master/slave interferometry – ideal tool for coherence revival swept source optical coherence tomography

Abstract : In this paper, we demonstrate that the master slave (MS) interferometry method can significantly simplify the practice of coherence revival swept source optical coherence tomography (OCT) technique. Previous implementations of the coherence revival technique required considerable resources on dispersion compensation and data resampling. The total tolerance of the MS method to nonlinear tuning, to dispersion in the interferometer and to dispersion due to the laser cavity, makes the MS ideally suited to the practice of coherence revival. In addition, enhanced versatility is allowed by the MS method in displaying shorter axial range images than that determined by the digital sampling of the data. This brings an immediate improvement in the speed of displaying cross-sectional images at high rates without the need of extra hardware such as graphics processing units or field programmable gate arrays. The long axial range of the coherence revival regime is proven with images of the anterior segment of healthy human volunteers.
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https://hal.univ-brest.fr/hal-03700370
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Submitted on : Tuesday, June 21, 2022 - 10:23:00 AM
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Adrian Bradu, Sylvain Rivet, Adrian Podoleanu. Master/slave interferometry – ideal tool for coherence revival swept source optical coherence tomography. Biomedical optics express, 2016, 7 (7), pp.2453-2468. ⟨10.1364/boe.7.002453⟩. ⟨hal-03700370⟩

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