Near-infrared spatial solitons in heavy metal oxide glasses

A. Pasquazi, S. Stivala, G. Assanto, J. Ponzalo, J. Solis, and C. Afonso

Opt. Lett. 32, 2103-2105 (2007)


We demonstrate two-dimensional spatial solitons excited by near-infrared picosecond pulses in Kerr-like heavy metal-oxide glasses with a nonlinearity one order of magnitude larger than in fused silica. Solitons were obtained at 820 nm owing to the presence of multiphoton absorption which prevented catastrophic collapse.