Over the last few decades, several all-optical circuits have been proposed to meet the need of high-speed data processing. In some information processing architectures, the role of various analog and digital data comparisons is very important. In this letter, we proposed a multi-bit data comparison scheme. The scheme is based on the switching property of optical nonlinear material. Ultrafast operational speed larger than gigahertz can be expected from this all-optical scheme.
© 2008 Chinese Optics Letters
(190.0190) Nonlinear optics : Nonlinear optics
(200.0200) Optics in computing : Optics in computing
(200.1130) Optics in computing : Algebraic optical processing
(200.3760) Optics in computing : Logic-based optical processing
Kuladeep Roy Chowdhury, Abhijit Sinha, and Sourangshu Mukhopadhyay, "An all-optical comparison scheme between two multi-bit data with optical nonlinear material," Chin. Opt. Lett. 6, 693-696 (2008)