11 February 2011 Ultra-high-speed polarization sensitive OCT in the human retina using a single spectrometer
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We present a single spectrometer functional spectral domain optical coherence tomography system, which allows for encoding additional information within the spatial frequencies. The method is based on a differentiation between orthogonal polarization channels through spatial modulation introduced by an electro-optic modulator. This method is used to perform Ultrahigh- speed retinal polarization sensitive optical coherence tomography (PSOCT). With this setup, we realized for the first time polarization sensitive OCT measurements of the human retina in-vivo, with camera line rates of up to 160.000 A-scans per second. Compared to PSOCT systems, operating at traditional line rates, this significantly improves patient comfort during the measurements and gives the possibility to resolve microscopic retinal details, while still gaining information of the polarization characteristics of the tissue. In this proceeding we present preliminary results acquired with this ultra-high speed PSOCT system.
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Tilman Schmoll, Tilman Schmoll, Erich Götzinger, Erich Götzinger, Angelika Unterhuber, Angelika Unterhuber, Christoph K. Hitzenberger, Christoph K. Hitzenberger, Rainer A. Leitgeb, Rainer A. Leitgeb, "Ultra-high-speed polarization sensitive OCT in the human retina using a single spectrometer", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 78890U (11 February 2011); doi: 10.1117/12.875708; https://doi.org/10.1117/12.875708

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