Nonlinear space-time processing of femtosecond laser pulses

Dmitriy Panasenko*, Rostislav Rokitski, Dan M. Marom, Yuri Mazurenko, Pang Chen Sun, Yeshaiahu Fainman

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We describe various optical techniques for processing and detection of femtosecond laser pulses. Photorefractive and cascaded second order nonlinear wave mixing are used for space-to-time conversion, transforming space domain information into ultrafast temporal waveforms. An inverse operation that transforms a femtosecond pulse sequence into a quasi-stationary spatial image is performed with spectral domain three wave-mixing. We also demonstrate single-shot phase sensitive femtosecond pulse detection with two-photon absorption in a conventional silicon detector array. This approach allows efficient detection of wide-bandwidth ultrafast signals in the wavelength range of 1-2 μm.

Original languageAmerican English
Pages (from-to)231-242
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2002
Externally publishedYes
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII - Seattle, WA, United States
Duration: 9 Jul 200211 Jul 2002


  • Interferometric correlation
  • Nonlinear information processing
  • Pulse imaging
  • Pulse shaping
  • Sonogram
  • Space-time processes
  • Two-photon absorption


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