Time-domain Interferometry for Direct Electric-Field Reconstruction by Use of an Acousto-Optic Programmable Filter and a Two-Photon Detector

Opt Lett. 2003 Feb 15;28(4):278-80. doi: 10.1364/ol.28.000278.


We introduce a new approach to the characterization of femtosecond optical pulses based on a remarkably simple setup combining a two-photon detector and a pulse shaper consisting of a longitudinal acousto-optic programmable filter. The operation of this setup is demonstrated through the use of a new version of spectral phase interferometry for direct electric-field reconstruction based on time-domain instead of on frequency-domain interferometry.

MeSH terms

  • Acoustics*
  • Electricity
  • Filtration / instrumentation*
  • Interferometry / instrumentation*
  • Optics and Photonics*
  • Photons*
  • Software*