Planar waveguide phase matching for backward parametric oscillation

Backward parametric oscillation (BWO) is of very interest for developing of mirrorless parametric frequency converters in actual mid-IR range. The aim of our investigation is to continue the analysis of possibility of realizing phase matched BWO in planar nonlinear optical waveguides with various compositions and parameters. The carried out calculations show that with BWO in waveguides there are opposing factors to be considered, but phase matched solutions are found within wide range of mid-IR generation for mode orders rather small for such phenomena.