Low-threshold spatial solitons in reverse-proton-exchanged periodically poled lithium niobate waveguides

Giuseppe Leo; Antonio Amoroso; Lorenzo Colace; Gaetano Assanto; Rostislav V Roussev; Martin M Fejer

doi:10.1364/ol.29.001778

Low-threshold spatial solitons in reverse-proton-exchanged periodically poled lithium niobate waveguides

Opt Lett. 2004 Aug 1;29(15):1778-80. doi: 10.1364/ol.29.001778.

Authors

Giuseppe Leo¹, Antonio Amoroso, Lorenzo Colace, Gaetano Assanto, Rostislav V Roussev, Martin M Fejer

Affiliation

¹ Nonlinear Optics and OptoElectronics Laboratory, National Institute for the Physics of Matter, Università "Roma Tre," Via della Vasca Navale 84, 00146 Rome, Italy.

PMID: 15352367
DOI: 10.1364/ol.29.001778

Abstract

Combining reverse proton exchange and uniform periodic poling in LiNbO3 planar waveguides, we demonstrate low-energy spatial optical solitons by second-harmonic generation at room temperature, with a threshold as low as 23 pJ/microm at 1.5 microm.