Fig. 1. Schematic of all-optical logic gates based on SFG+DFG in a PPLN waveguide

Fig. 2. Structure of data selector

Fig. 3. Concept of utilizing PPLN waveguide as NOT logic gate

Fig. 4. Diagram of the all-optical data selector based on cascaded PPLN waveguides

Fig. 5. Waveforms of various signal of the all-optical data selector. (a) S; (b) D0; (c) D1; (d) S-; (e) S-D0; (f) SD1; (g) Y

Fig. 6. Eye diagrams of various signal of the all-optical data selector. (a) S; (b) D0; (c) D1; (d) S-; (e) S-D0; (f) SD1; (g) Y