Na. Khilo, OPTICAL SWITCHING IN A DIRECTIONAL COUPLE R WITH THE AID OF A NONLINEAR PHASE-SHIFT IN 2ND-HARMONIC GENERATION, Kvantovaa elektronika, 22(5), 1995, pp. 511-513
An analytic investigation is made of a nonlinear directional coupler b
ased on second harmonic generation from constant-intensity fundamental
-frequency radiation. The parameters of the coupler are Found and the
intensity of light needed to induce a nonlinear shirt of pi is calcula
ted. Single-frequency output of a directional coupler favours its use
in optical data processing systems.