Linear optical coherence tomography system with a downconverted fringe pattern

Peter Koch*, Gereon Hüttmann, Hansfrieder Schleiermacher, Jörge Eichholz, Edmund Koch

*Corresponding author for this work
14 Citations (Scopus)


Linear optical coherence tomography (LOCT) systems are a simple and robust alternative to time-domain optical coherence tomography systems, but a detector with approximately 104 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.

Original languageEnglish
JournalOptics Letters
Issue number14
Pages (from-to)1644-1646
Number of pages3
Publication statusPublished - 15.07.2004

Research Areas and Centers

  • Academic Focus: Biomedical Engineering


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