Abstract

A photorefractive model of the efficient second-harmonic generation of light in single-mode glass optical fibers is presented. In this model the photoinduced charge redistribution gives rise to an internal dc electric field, which acts on the χ⁽³⁾ of the glass, resulting in an effective χ⁽²⁾ Phase matching is due to the interference of the radiation-driven field and the second-harmonic field.

© 1990 Optical Society of America