Abstract

We present a model for second-harmonic generation (SHG) in germanium-doped silica and provide results from some numerical simulations. Our simulations examine the temporal evolution of the SHG and do not account for the spatial saturation of SHG along the direction of propagation. In planar waveguides and bulk glass, the effect of the generated second harmonic (SH) wave is negligible as the SHG conversion efficiency is diffraction limited [1]. Certainly in fibers, the generated SH wave plays a part in dictating the saturation of SHG. Nevertheless, even in the case of fibers, our temporal simulations are able to shed some light on the saturation mechanism.

© 1996 Optical Society of America