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Spectral shaping for non-Gaussian source spectra in optical coherence tomography.

  • Author(s): Tripathi, Renu;
  • Nassif, Nader;
  • Nelson, J Stuart;
  • Park, Boris Hyle;
  • de Boer, Johannes F
  • et al.
Abstract

We present a digital spectral shaping technique to reduce the sidelobes (ringing) of the axial point-spread function in optical coherence tomography for non-Gaussian-shaped source spectra. The spectra of two superluminescent diodes were combined to generate a spectrum with significant modulation. Images of onion cells demonstrate the improved image quality in a turbid biological sample. A quantitative analysis of the accompanying penalty in signal-to-noise ratio is given.

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