Low-threshold spatial solitons in reverse-proton-exchanged periodically poled lithium niobate waveguides
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Giuseppe Leo1, Antonio Amoroso, Lorenzo Colace
1Nonlinear Optics and OptoElectronics Laboratory, National Institute for the Physics of Matter, Università "Roma Tre," Via della Vasca Navale 84, 00146 Rome, Italy.
Optics Letters
|September 9, 2004
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.
