On the nonclassical dynamics of cavity-assisted four-channel nonlinear coupler

Julius Rafael^{1, 2}, Ibrahim Abdel-Baset M A^{1, †}, Choudhury Pankaj Kumar³, Eleuch Hichem^{4, 5}

Schematic diagram of a cavity-assisted four-channel directional coupler. (a) Complete structure. (b) Cross section.