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

Opt Lett. 2003 Nov 15;28(22):2201-3. doi: 10.1364/ol.28.002201.


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.

MeSH terms

  • Algorithms*
  • Models, Theoretical*
  • Tomography, Optical Coherence*