Amplitude and chirp characterization of high-power laser pulses in the 5-fs regime

Z. Cheng*, A. Fürbach, S. Sartania, M. Lenzner, Ch Spielmann, F. Krausz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)


Frequency-resolved optical gating (FROG) based on second-harmonic generation has been demonstrated to be capable of high-fidelity measurement of the electric-field envelope and of the temporal evolution of the instantaneous carrier frequency of 0.1-TW 5-fs pulses without the need for any correction for systematic experimental errors. At a 1-kHz repetition rate, pulse energies of a few microjoules are sufficient for reliable FROG characterization of pulses with durations down to the single-cycle regime. The results obtained reveal that carefully designed hollow-fiber chirped-mirror compressors are able to deliver high-power sub-10-fs pulses with a smooth Gaussianlike leading edge that has an intensity contrast of ≈10-2.

Original languageEnglish
Pages (from-to)247-249
Number of pages3
JournalOptics Letters
Issue number4
Publication statusPublished - 15 Feb 1999
Externally publishedYes


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