Dual-channel-output all-optical logic AND gate at 20 Gbit/s based on cascaded second-order nonlinearity in PPLN waveguide

• DOI: 10.1049/el:20071236
• Publication Date: 2007-08-17T14:07:36Z
• Authors: J. Wang; J. Sun; Q. Sun; D. Wang; M. Zhou; X. Zhang; D. Huang; M.M. Fejer
• Keywords: 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

Proposed and demonstrated is a novel scheme of a dual-channel-output all-optical logic AND gate. Using cascaded sum- and difference-frequency generation in a periodically poled lithium niobate (PPLN) waveguide, 20 Gbit/s logic AND operation with dual-channel outputs is successfully observed in the experiment.