Improving techniques for diagnostics of laser pulses by compact representations

P. Sidorenko*, A. Dikopoltsev, T. Zahavy, O. Lahav, S. Gazit, Y. Shechtman, A. Szameit, D. J. Tannor, Y. C. Eldar, M. Segev, O. Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


We propose and demonstrate, numerically and experimentally, use of sparsity as prior information for extending the capabilities and performance of techniques and devices for laser pulse diagnostics. We apply the concept of sparsity in three different applications. First, we improve a photodiode-oscilloscope system’s resolution for measuring the intensity structure of laser pulses. Second, we demonstrate the intensity profile reconstruction of ultrashort laser pulses from intensity autocorrelation measurements. Finally, we use a sparse representation of pulses (amplitudes and phases) to retrieve measured pulses from incomplete spectrograms of cross-correlation frequency-resolved optical gating traces.

Original languageAmerican English
Pages (from-to)8920-8934
Number of pages15
JournalOptics Express
Issue number6
StatePublished - 18 Mar 2019

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© 2019 Optical Society of America.


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