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PubMed · 15309846

Linear optical coherence tomography system with a downconverted fringe pattern.

Peter Koch·Gereon Hüttmann·Hansfrieder Schleiermacher·Jörge Eichholz·Edmund Koch
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Abstract

Linear optical coherence tomography (LOCT) systems are a simple and robust alternative to time-domain optical coherence tomography systems, but a detector with approximately 10(4) pixels is needed for an imaging depth of 2 mm. We present a new system for LOCT with a special mask attached to the image sensor. The mask essentially performs a downconversion of the spatial frequencies by multiplication with a second spatial frequency. This reduces the fringe frequency of the optical coherence tomography signal so that the signal can be sampled with fewer pixels.

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Equipment DesignEquipment Failure AnalysisFeasibility StudiesImage EnhancementRefractometryReproducibility of ResultsSensitivity and SpecificitySignal Processing, Computer-AssistedTomography, Optical CoherenceComparative StudyEvaluation StudyJournal Article

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Peter Koch, Gereon Hüttmann, Hansfrieder Schleiermacher, Jörge Eichholz, Edmund Koch. 2004-07-15. Linear optical coherence tomography system with a downconverted fringe pattern.. https://doi.org/10.1364/ol.29.001644

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