Linear optical coherence tomography system with a downconverted fringe pattern
Optics Letters, Vol. 29, Issue 14, pp. 1644-1646 (2004)
http://dx.doi.org/10.1364/OL.29.001644
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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 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.
© 2004 Optical Society of America
OCIS Codes
(040.1520) Detectors : CCD, charge-coupled device
(060.2310) Fiber optics and optical communications : Fiber optics
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(170.1650) Medical optics and biotechnology : Coherence imaging
(260.3160) Physical optics : Interference
(290.4210) Scattering : Multiple scattering
Citation
Peter Koch, Gereon Hüttmann, Hansfrieder Schleiermacher, Jörge Eichholz, and Edmund Koch, "Linear optical coherence tomography system with a downconverted fringe
pattern," Opt. Lett. 29, 1644-1646 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-14-1644
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