Second Harmonic Generation in Optical Fibers

This series of lectures on second harmonic generation in fibers is divided up into four sections. The first is a general overview of the problem and treats the discovery of the effect, phasematching by an alternating X(2) grating, and formation of the gratings by seeding. The second section deals with a mixing for grating formation and shows how the grating length is determined by the spectral bandwidth of the input beams. The third section treats phasematching and quadrupole effects and discusses the dynamics of grating formation. In the fourth section some of the microscopic models are discussed along with experimental results on bleaching, electron spin resonance, and the effect of external electric fields.