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Comparison of scanning laser polarimetry and polarization sensitive spectral domain optical coherence tomography

We developed a high-speed polarization sensitive optical coherence tomography (PS-OCT) system for retinal imaging based on spectral domain OCT. The system uses two spectrometers, one for each polarization channel, that operate in parallel at 20000 A-lines/s each. It provides reflectivity, retardation, and cumulative optic axis orientation simultaneously. With this setup we measured the three dimensional polarization properties of human retinas in vivo and compared them with results obtained from a commercially available scanning laser polarimetry system.