Real-time synthesis and detection of ultrafast optical waveforms

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

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We describe several concepts for real time shaping and detection of femtosecond laser pulses using optical nonlinearities. Cascaded second order wave mixing is used for real-time conversion of spatial-domain images to ultrafast time-domain optical waveforms. We experimentally demonstrate a cascaded nonlinearity arrangement allowing generation of complex amplitude femtosecond waveforms with high fidelity and good conversion efficiency. Single-shot, phase-sensitive detection of femtosecond pulses is demonstrated using both nonlinear wave-mixing and 2-photon absorption in semiconductor detector arrays. Using commercial silicon charge-coupled device (CCD), the latter approach allows detection of broadband ultrashort signals in the important wavelength range around 1.5 microns without phase-matching limitations. Finally we describe an approach to characterization of the multimode fiber using ultrashort pulse interferometry.

Original languageAmerican English
Pages (from-to)58-69
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2003
Externally publishedYes
EventCommercial and Biomedical Applications of Ultrafast Lasers III - San Jose, CA, United States
Duration: 28 Jan 200330 Jan 2003


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


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