Abstract

A new model of the process of preparing optical fibers for effective second-harmonic generation by the poling technique is presented. The model is based on the idea that the formation of a second-order susceptibility [χ(2)] structure is a consequence of a nonlinear anisotropic optoelectric hysteresis of doped fibers. Strings of interconnected dopant defects are assumed to be oriented along the fiber, which necessitates the formation of a χ(2) structure with periodically alternating sign.

© 1991 Optical Society of America

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