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6 June 2011 Speckle noise reduction by averaging in polarization sensitive spectral domain optical coherence tomography
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Abstract
We demonstrate an ultra high speed fiber based polarization sensitive spectral domain optical coherence tomography system, using two ultra high speed CMOS line scan cameras. With this system an A-scan rate of up to 128 kHz was achieved. The system is based on polarization maintaining fibers and retrieves the backscattered intensity, retardation and optic axis orientation with only one A-scan per measurement location. This high speed data acquisition enables averaging of several acquired B-scans of intensity, retardation, optic axis orientation, and Stokes vectors, which strongly reduces speckle noise. We discuss different averaging techniques and compare the results in healthy human retinas.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Erich Götzinger, Michael Pircher, B. Baumann, Tillman Schmoll, Harald Sattmann, Rainer A. Leitgeb, and Christoph K. Hitzenberger "Speckle noise reduction by averaging in polarization sensitive spectral domain optical coherence tomography", Proc. SPIE 8091, Optical Coherence Tomography and Coherence Techniques V, 80910A (6 June 2011); https://doi.org/10.1117/12.889623
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