Enhanced second-harmonic generation by means of high-power confinement in a photovoltaic soliton-induced waveguide

Cibo Lou; Jingjun Xu; Haijun Qiao; Xinzheng Zhang; Yunlin Chen; Zhigang Chen

doi:10.1364/ol.29.000953

Enhanced second-harmonic generation by means of high-power confinement in a photovoltaic soliton-induced waveguide

Opt Lett. 2004 May 1;29(9):953-5. doi: 10.1364/ol.29.000953.

Authors

Cibo Lou¹, Jingjun Xu, Haijun Qiao, Xinzheng Zhang, Yunlin Chen, Zhigang Chen

Affiliation

¹ TEDA Applied Physics School, Photonics Center, College of Physics Science, Nankai University, Tianjin, China.

PMID: 15143638
DOI: 10.1364/ol.29.000953

Abstract

We present the first experimental demonstration of enhanced second-harmonic generation (SHG) by means of power confinement with a femtosecond laser in a photovoltaic soliton-induced waveguide. A dark spatial soliton created with a weak cw laser beam in a photovoltaic lithium niobate crystal induces an efficient waveguide for SHG, leading to a 60% enhancement of the conversion efficiency.