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.
Published Web Locationhttps://doi.org/10.1364/ol.27.000406
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.