Linear optical coherence tomography system with extended measurement range.

Peter Koch; Volker Hellemanns; Gereon Hüttmann

doi:10.1364/ol.31.002882

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Linear optical coherence tomography system with extended measurement range.

Peter Koch·Volker Hellemanns·Gereon Hüttmann

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Abstract

Optical coherence tomography (OCT) sensors traditionally use scanning optical delay lines with moving parts and a single detector. OCT systems with a linear detector array (linear OCT or L-OCT) are simple and robust, but a detector with approximately 10,000 pixels is needed for an imaging depth of 2mm, which is necessary for most biomedical applications. We present a new optical setup for L-OCT with an increased measurement range. An additional grating performs a reduction of the spatial frequencies of the fringe pattern on the detector without loss in the signal-to-noise ratio, so the signal can be sampled with a minimal number of pixels. The theory for this approach is addressed and the first measurements are presented.

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Computer Simulation Equipment Design Equipment Failure Analysis Image Enhancement Image Interpretation, Computer-Assisted Linear Models Models, Biological Refractometry Reproducibility of Results Sensitivity and Specificity Tomography, Optical Coherence Evaluation Study Journal Article

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Peter Koch, Volker Hellemanns, Gereon Hüttmann. 2006-10-01. Linear optical coherence tomography system with extended measurement range.. https://doi.org/10.1364/ol.31.002882

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