All-Optical Logic Minterms for Three-Input Demodulated Differential Phase-Shift Keying Signals at 40 Gb/s

Author

Chen, Xuebing ; Yu, Yu ; Zhang, Xinliang

Author_Institution

Wuhan Nat. Lab. for Optoelectron., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

23

Issue

2

fYear

2011

Firstpage

118

Lastpage

120

Abstract

The 40-Gb/s all-optical logic minterms generation of three input demodulated return-to-zero differential phase-shift-keying signals is demonstrated based on two delayed interferometers and a semiconductor optical amplifier cascaded with two bandpass filters. Experimental demonstration verifies the logic integrity of this scheme. The final results are derived in the on-off keying format with clear open eyes and extinction ratios over 10 dB. The proposed scheme could be extended to realize arbitrary complex logic gates.

Keywords

band-pass filters; demodulation; differential phase shift keying; interferometers; optical communication equipment; optical logic; semiconductor optical amplifiers; all-optical logic minterms generation; arbitrary complex logic gates; bandpass filters; delayed interferometers; differential phase-shift-keying signals; extinction ratios; logic integrity; on-off keying format; semiconductor optical amplifier; three input demodulated return-to-zero; three-input demodulated differential phase-shift keying signals; Logic gates; Nonlinear optics; Optical attenuators; Optical filters; Optical pumping; Semiconductor optical amplifiers; Delayed interferometers (DIs); optical logic minterms; return-to-zero differential phase-shift keying (RZ-DPSK); semiconductor optical amplifier (SOA);

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2010.2091628

Filename

5634079