We present a comprehensive model for the description of different types of parametric interactions, associated with simultaneous phase-matching of several optical processes: the so-called multistep parametric interactions. Our approach is based on a recently derived single-wave broadband equation that is able to describe general quadratic nonlinear optical interactions and can be solved with modest computational effort. We compare theoretical results with experiments on simultaneous second- and third-harmonic generation performed in periodically poled lithium tantalate crystals.
© 2011 Optical Society of America
Original Manuscript: December 20, 2010
Revised Manuscript: February 10, 2011
Manuscript Accepted: February 10, 2011
Published: March 23, 2011
M. Conforti, F. Baronio, C. De Angelis, M. Marangoni, and G. Cerullo, "Theory and experiments on multistep parametric processes in nonlinear optics," J. Opt. Soc. Am. B 28, 892-895 (2011)