Three-Wave Mixing beyond the Small-Signal Limit
Our treatment of the coupled wave equations in Chapter 4 introduces the general characteristics of phase matching and tolerances. We derive these properties by making several assumptions. The two principal assumptions are monochromatic plane-wave interactions and the small-signal approximation where the inputs are negligibly affected by the nonlinear interaction. We return again to the coupled amplitude equations but with less restrictive assumptions regarding the changes in field amplitudes. This treatment shows the important result that nonlinear interactions exhibit exponential gain. Hence, even weak nonlinearities may yield high conversion efficiency with a sufficiently long ...
Get Fundamentals of Nonlinear Optics, 2nd Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
