Taking into account possible mismatches inside the waveguides and between them we investigate both codirectional and contradirectional nonlinear couplers. We observe nonclassical beahviour of beams generated by the nonlinear waveguides.
Taking into account possible mismatches inside the waveguides and between them we investigate both codirectional and contradirectional nonlinear couplers. We observe nonclassical beahviour of beams generated by the nonlinear waveguides. (en)