Robust generation, properties, and potential applications of quadratic spatial solitons generated by optical parametric amplification

R. A. Fuerst, M. T. G. Canva, G. I. Stegeman, G. Leo, and G. Assanto

Opt. Quantum Electron. 30, 907-921 (1998)


Quadratic spatial solitary waves are predicted and observed experimentally near conditions for Type II down-conversion in bulk KTP, by seeding an intense optical field with a control signal at half frequency. The self-trapping of light at the two wavelengths has been shown to be insensitive to phase, polarization and magnitude of the control input, and can be exploited in novel schemes for robust all-optical processing.