Abstract
We present a fiber-based, low-coherence interferometer that significantly reduces phase noise by incorporating a second, narrowband, continuous-wave light source as a phase reference. By incorporating this interferometer into a Doppler OCT system, we demonstrate significant velocity noise reduction in reflective and scattering samples using processing techniques amenable to real-time implementation. We also demonstrate 90% suppression of velocity noise in a flow phantom.
Publication types
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Evaluation Study
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Research Support, N.I.H., Extramural
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Equipment Design
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Equipment Failure Analysis
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Fiber Optic Technology / instrumentation*
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Fiber Optic Technology / methods
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Image Enhancement / instrumentation*
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Image Enhancement / methods
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Laser-Doppler Flowmetry / instrumentation*
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Laser-Doppler Flowmetry / methods
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Light
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Microscopy, Interference / instrumentation*
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Microscopy, Interference / methods
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Nephelometry and Turbidimetry / instrumentation*
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Nephelometry and Turbidimetry / methods
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Phantoms, Imaging
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Scattering, Radiation
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Tomography, Optical Coherence / instrumentation*
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Tomography, Optical Coherence / methods