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Open AccessArticle

Fiber-Based Polarization Diversity Detection for Polarization-Sensitive Optical Coherence Tomography

Integrative Oncology Department-Imaging Unit, BC Cancer Research Center, 675 West 10th Avenue, Vancouver, Canada
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Photonics 2014, 1(4), 283-295; https://doi.org/10.3390/photonics1040283
Received: 28 August 2014 / Revised: 26 September 2014 / Accepted: 26 September 2014 / Published: 30 September 2014
(This article belongs to the Special Issue Biomedical Optics and Optical Imaging)
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
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Pahlevaninezhad, H.; Lee, A.M.D.; Cahill, L.; Lam, S.; MacAulay, C.; Lane, P. Fiber-Based Polarization Diversity Detection for Polarization-Sensitive Optical Coherence Tomography. Photonics 2014, 1, 283-295.

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