SOLITON-REPULSION LOGIC GATE

We present numerical simulations of a logic gate based on repulsive in teraction in a dual-core fiber and call it a soliton-repulsion logic g ate (SRLG). The operation of the SRLG is compared with that of the con ventional soliton-dragging logic gate based on cross-phase modulation. The length of the SRLG can be reduced by a factor of 3 over that of t he conventional logic gate. By optimizing parameters, terahertz operat ion can be obtained. (C) 1996 Optical Society of America