Polarization dependence of fiber-based parametric devices griffon tutorial

Parametric devices based on four-wave mixing in fibers can amplify, frequency convert, phase conjugate, regenerate, sample and buffer optical signals. In this tutorial, I will review the physics of degenerate and nondegenerate four-wave mixing, and describe the polarization properties of these processes in rapidly-spun, randomly-birefringent and strongly-birefringent fibers.