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Opt Lett. 2003 Nov 15;28(22):2201-3.

Phase-shifting algorithm to achieve high-speed long-depth-range probing by frequency-domain optical coherence tomography.

Author information

1
Department of Medical Physics, University of Vienna, Waehringer Strasse 13, Vienna A-1090, Austria. rainer.leitgeb@univie.ac.at

Abstract

Standard Fourier-domain optical coherence tomography (FDOCT) suffers from the presence of autocorrelation terms that obscure the object information and degrade the sensitivity and signal-to-noise ratio. By exploiting the phase information of the recorded interferograms, it is possible to remove those autocorrelation terms and to double the measurement range. However, standard phase-retrieval algorithms need three to five interferograms. We present a novel technique that shows all the features of complex FDOCT with only two recorded interferograms.

PMID:
14649941
[Indexed for MEDLINE]

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