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Proceedings Paper

Linear OCT system with increased measurement depth for biomedical applications
Author(s): Gereon Hüttmann; Volker Hellemanns; Peter Koch
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Paper Abstract

Time domain optical coherence tomography (OCT) traditionally uses scanning optical delay lines with moving parts and a point detectors. OCT systems build with a linear detector array (linear OCT or L-OCT) are simple and robust, but a detector with approx. 10,000 elements is needed for an imaging depth of 2 millimeter, which is necessary for most biomedical applications. We present a new optical setup for L-OCT with increased measurement range. An additional grating performs a reduction of the spatial frequencies of the fringe pattern on the detector without loss of SNR, so the signal can be sampled with a minimal number of pixels. The theory for this approach is addressed and first measurements are presented.

Paper Details

Date Published: 10 February 2007
PDF: 6 pages
Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 642915 (10 February 2007); doi: 10.1117/12.700853
Show Author Affiliations
Gereon Hüttmann, Institute of Biomedical Optics, Univ. of Lübeck (Germany)
Volker Hellemanns, Institute of Biomedical Optics, Univ. of Lübeck (Germany)
Peter Koch, Thorlabs-HL AG (Germany)


Published in SPIE Proceedings Vol. 6429:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI
James G. Fujimoto; Joseph A. Izatt; Valery V. Tuchin, Editor(s)

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