Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate
Optics
2012-10-05 v1
Abstract
We observe second harmonic generation via random quasi-phase-matching in a 2.0 \mu m periodically poled, 1-cm-long, z-cut lithium tantalate. Away from resonance, the harmonic output profiles exhibit a characteristic pattern stemming from a stochastic domain distribution and a quadratic growth with the fundamental excitation, as well as a broadband spectral response. The results are in good agreement with a simple model and numerical simulations in the undepleted regime, assuming an anisotropic spread of the random nonlinear component.
Keywords
Cite
@article{arxiv.1210.1366,
title = {Random quasi-phase-matched second-harmonic generation in periodically poled lithium tantalate},
author = {Salvatore Stivala and Alessandro C. Busacca and Alessia Pasquazi and Roberto L. Oliveri and Roberto Morandotti and Gaetano Assanto},
journal= {arXiv preprint arXiv:1210.1366},
year = {2012}
}