Design of 1-dimensional multiple quasi-phase-matched aperiodic and nonperiodic optical superlattices ——a self-adjusting algorithm

A self-adjusting method for realizing multiple quasi-phase-matched nonlinear optical parametric processes in aperiodic and non-periodic optical superlattices is proposed. Numerical simulations show that this self-adjusting algorithm is more flexible and effective than other existing algorithms, and more ideal results can be gained in a much shorter time. In addition, it can avoid blind searching and is independent of the initial conditions.