Amplitude ambiguities in second-harmonic generation frequency-resolved optical gating.

Abstract

We construct field shapes with distinct amplitude profiles that have nearly identical second-harmonic generation frequency-resolved optical gating (SHG FROG) traces. Although such fields are not true mathematical ambiguities, they result in experimentally indistinguishable FROG traces. These fields are neither time-reversed copies nor pulselets with a mere relative phase difference, which are well known nontrivial ambiguities for SHG FROG. We also show that for certain example fields, second-order interferometric autocorrelation is more sensitive to the pulse shape than is SHG FROG.

DOI: 10.1364/OL.34.002602

Cite this paper

@article{Yellampalle2007AmplitudeAI, title={Amplitude ambiguities in second-harmonic generation frequency-resolved optical gating.}, author={Balakishore Yellampalle and Kiyong Kim and Antoniette J Taylor}, journal={Optics letters}, year={2007}, volume={34 17}, pages={2602; discussion 2603} }