V-FROG—single-scan vectorial FROG

Gil Ilan Haham, Alexander Levin, Pavel Sidorenko, Gavriel Lerner, Oren Cohen

Research output: Contribution to journalArticlepeer-review

Abstract

We propose and experimentally demonstrate single-scan vectorial frequency-resolved optical gating (FROG) which characterizes the amplitude, phase and polarization of ultrashort laser pulses using a single measured spectrogram. It is carried out by rotating the polarization of the incoming pulse (using a half-wavelength waveplate), in parallel to scanning the delay between the pulse and its replica in an otherwise ordinary FROG apparatus. A ptychography-based phase retrieval algorithm extracts the full pulse information from the recorded spectrogram. We numerically show that this method is reliable and use it to experimentally reconstruct a pulse with intricate time-dependent polarization. We also show that this method can be used to remove time-reversal ambiguity of second harmonic generation FROG.

Original languageEnglish
Article number034017
JournalJPhys Photonics
Volume3
Issue number3
DOIs
StatePublished - 24 Jun 2021

Keywords

  • Frequency-resolved optical gating
  • Laser polarization state
  • Phase retrieval
  • Ptychography algorithm
  • frequency-resolved optical gating
  • laser polarization state
  • phase retrieval
  • ptychography algorithm

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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