PPLN-Based Flexible Optical Logic and Gate

Author

Wang, Jian ; Sun, Junqiang ; Sun, Qizhen ; Wang, Dalin ; Zhang, Xinliang ; Huang, Dexiu ; Fejer, M.M.

Author_Institution

Huazhong Univ. of Sci. & Technol., Wuhan

Volume

20

Issue

3

fYear

2008

Firstpage

211

Lastpage

213

Abstract

All-optical flexible 20-Gb/s logic and gate based on cascaded sum- and difference-frequency generation in a periodically poled lithium niobate waveguide is proposed and experimentally demonstrated. The theoretical analyses further indicate that 40-, 80-, and 160-Gb/s ultrahigh-speed logic and operations can potentially be performed. Moreover, it is expected that the and output can be tuned in a wide wavelength range (67 nm) with slight fluctuation of the Q-factor and extinction ratio.

Keywords

Q-factor; lithium compounds; logic gates; optical frequency conversion; optical logic; optical materials; optical waveguides; AND gate; LiNbO₃; PPLN; Q-factor; bit rate 20 Gbit/s; cascaded sum-frequency generation; difference-frequency generation; flexible optical logic gate; optical frequency conversion; periodically poled lithium niobate waveguide; Fiber nonlinear optics; Logic gates; Optical attenuators; Optical filters; Optical saturation; Optical signal processing; Optical waveguides; Stimulated emission; Sun; Ultrafast optics; All-optical logic gate; cascaded sum- and difference-frequency generation (cSFG/DFG); optical signal processing; periodically poled lithium niobate (PPLN);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2007.913227

Filename

4429344