1 July 2004 Light sources for optical cross-talk suppression in wide-field optical coherence tomography
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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.
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Boris Karamata, Markus Laubscher, Patrick Lambelet, Tiemo Anhut, Theo Lasser, "Light sources for optical cross-talk suppression in wide-field optical coherence tomography", Proc. SPIE 5316, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine VIII, (1 July 2004); doi: 10.1117/12.530337; https://doi.org/10.1117/12.530337
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