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Proceedings Paper

Light sources for optical cross-talk suppression in wide-field optical coherence tomography
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Paper Abstract

The crucial role played by the source's degree of spatial coherence in wide-field optical coherence tomography is shown experimentally. Spatially coherent illumination, as obtained with a pulsed laser, generates a considerable amount of coherent optical cross-talk. The latter can be suppressed with spatially incoherent illumination as provided by a thermal or a pseudothermal light source. Demonstration is made for a US air force resolution target covered with a scattering solution made of polystyrene microspheres suspended in water. The origin and nature of cross-talk signals are discussed, as well as specific limitations of spatially incoherent sources.

Paper Details

Date Published: 1 July 2004
PDF: 10 pages
Proc. SPIE 5316, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII, (1 July 2004); doi: 10.1117/12.530337
Show Author Affiliations
Boris Karamata, Swiss Federal Institute of Technology (Switzerland)
Markus Laubscher, Swiss Federal Institute of Technology (Switzerland)
Patrick Lambelet, Bright Power (Switzerland)
Tiemo Anhut, Swiss Federal Institute of Technology (Switzerland)
Theo Lasser, Swiss Federal Institute of Technology (Switzerland)


Published in SPIE Proceedings Vol. 5316:
Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII
Valery V. Tuchin; Joseph A. Izatt; James G. Fujimoto, Editor(s)

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