Fiber-Based Polarization Diversity Detection for Polarization-Sensitive Optical Coherence TomographyReport as inadecuate




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Integrative Oncology Department-Imaging Unit, BC Cancer Research Center, 675 West 10th Avenue, Vancouver, Canada





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Abstract We present a new fiber-based polarization diversity detection PDD scheme for polarization sensitive optical coherence tomography PSOCT. This implementation uses a new custom miniaturized polarization-maintaining fiber coupler with single mode SM fiber inputs and polarization maintaining PM fiber outputs. The SM fiber inputs obviate matching the optical lengths of the two orthogonal OCT polarization channels prior to interference while the PM fiber outputs ensure defined orthogonal axes after interference. Advantages of this detection scheme over those with bulk optics PDD include lower cost, easier miniaturization, and more relaxed alignment and handling issues. We incorporate this PDD scheme into a galvanometer-scanned OCT system to demonstrate system calibration and PSOCT imaging of an achromatic quarter-wave plate, fingernail in vivo, and chicken breast, salmon, cow leg, and basa fish muscle samples ex vivo. View Full-Text

Keywords: Polarization sensitive optical coherence tomography; imaging systems; fiber optic components; medical optics instrumentation Polarization sensitive optical coherence tomography; imaging systems; fiber optic components; medical optics instrumentation





Author: Hamid Pahlevaninezhad * , Anthony M. D. Lee, Lucas Cahill, Stephen Lam, Calum MacAulay and Pierre Lane

Source: http://mdpi.com/



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