Nonlinear integrated optical devices based on second and third order nonlinearities of Ti:LiNbO3 waveguides are reviewed. Second harmonic and difference frequency generators as well as parametric amplifiers and oscillators are presented as efficient devices for frequency conversion of coherent radiation. Furthermore, third order devices for signal processing and optical logic applications are discussed.
W. Sohler, W. Sohler,
"Nonlinear Integrated Optical Devices", Proc. SPIE 0492, 1984 European Conf on Optics, Optical Systems, and Applications, (27 March 1985); doi: 10.1117/12.943724; https://doi.org/10.1117/12.943724