Theoretical predictions and experimental observations show that a weak harmonic seed beam can control the process of generating multiple quadratic solitons in periodically poled KTiOPO<sub>4</sub> by inputting only a fundamental beam. This all-optical switching does not depend on the relative phase of the input beams, an unusual property for such coherent solitons.
© 2003 Optical Society of America
Sergey Polyakov, Hongki Kim, Ladislav Jankovic, George Stegeman, and Mordechai Katz, "Weak beam control of multiple quadratic soliton generation," Opt. Lett. 28, 1451-1453 (2003)