22 November 2000 Optical coherence tomography technique for thermal light sources
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The coherently emitted energy flux of thermal lamps is limited less to than 1 (mu) W and, therefore, is hardly useful in OCT. We describe a technique which enables the use of spatially incoherent light sources, like thermal light sources and transversal multi-mode lasers in the standard time-domain OCT technique. The beam power available for OCT depth scans is increased by combining several mutually incoherent OCT channels. This technique has advantages particularly in multiplex or parallel OCT: There is no coherent cross-talk between adjacent depth scans and the power available per pixel is not dependent on the number of parallel depth scans.
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Adolf Friedrich Fercher, Adolf Friedrich Fercher, Christoph K. Hitzenberger, Christoph K. Hitzenberger, Eva Maria Moreno-Barriuso, Eva Maria Moreno-Barriuso, Markus Sticker, Markus Sticker, Rainer Leitgeb, Rainer Leitgeb, Harald Sattmann, Harald Sattmann, } "Optical coherence tomography technique for thermal light sources", Proc. SPIE 4160, Photon Migration, Diffuse Spectroscopy, and Optical Coherence Tomography: Imaging and Functional Assessment, (22 November 2000); doi: 10.1117/12.407609; https://doi.org/10.1117/12.407609

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