Real-time spectroscopy with subgigahertz resolution using amplified dispersive Fourier transformation

  title={Real-time spectroscopy with subgigahertz resolution using amplified dispersive Fourier transformation},
  author={Jason T Chou and Daniel Solli and Bahram Jalali},
  journal={Applied Physics Letters},
Dispersive Fourier transformation is a powerful technique in which spectral information is mapped into the time domain using chromatic dispersion. It replaces a spectrometer with an electronic digitizer and enables real-time spectroscopy. The fundamental problem in this technique is the trade-off between the detection sensitivity and spectral resolution, a limitation set by the digitizer’s bandwidth. This predicament is caused by the power loss associated with optical dispersion. We overcome… 

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Classical Electrodynamics
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