Abstract

We report, to the best of our knowledge, the first application of time-domain ptychography for the characterization of few-cycle laser pulses. Our method enables zero-additional phase measurements of over-octave-spanning laser pulses in the single cycle regime. The spectral phase is recovered using a robust ptychography algorithm that requires no input apart from the measured data trace. In addition to numerical tests, we validate our new device experimentally by reconstructing the complex electric field of a 1.5 cycle laser pulse with a bandwidth spanning 490 to 1060 nm. We further check the accuracy of our device by comparing the measured phases of octave-spanning chirped pulses to the known dispersion of fused silica glass.

© 2016 Optical Society of America

Inline self-diffraction dispersion-scan of over octave-spanning pulses in the single-cycle regime

Miguel Canhota, Francisco Silva, Rosa Weigand, and Helder M. Crespo
Opt. Lett. 42(15) 3048-3051 (2017)

Interferometric time-domain ptychography for ultrafast pulse characterization

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Opt. Lett. 42(11) 2185-2188 (2017)

Self-referenced characterization of space–time couplings in near-single-cycle laser pulses

T. Witting, D. R. Austin, T. Barillot, D. Greening, P. Matia-Hernando, D. Walke, J. P. Marangos, and J. W. G. Tisch
Opt. Lett. 41(10) 2382-2385 (2016)

All-optical measurement of the complete waveform of octave-spanning ultrashort light pulses

Miguel Miranda, Francisco Silva, Lana Neoričić, Chen Guo, Vladimir Pervak, Miguel Canhota, Ana S. Silva, Íñigo J. Sola, Rosa Romero, Paulo T. Guerreiro, Anne L’Huillier, Cord L. Arnold, and Helder Crespo
Opt. Lett. 44(2) 191-194 (2019)

Improved retrieval of complex supercontinuum pulses from XFROG traces using a ptychographic algorithm

Alexander M. Heidt, Dirk-Mathys Spangenberg, Michael Brügmann, Erich G. Rohwer, and Thomas Feurer
Opt. Lett. 41(21) 4903-4906 (2016)