Two all-optical logic gates in a single photonic interferometer

OPTICS COMMUNICATIONS

卷:355

Article

Araujo, Antonio¹  Oliveira, Antonio¹  Martins, Francisco¹  Coelho, Amarilio²  Fraga, Wilton²  Nascimento, Jose¹ 

[1] Univ Fed Ceara, Sobral, Ceara, Brazil

[2] Fed Inst Educ Ceara, Sobral, Ceara, Brazil

关键词: Mach-Zehnder interferometer (MZI);    Photonic crystal fiber;    Nonlinear directional coupler (NLDC);    Pulse amplitude modulation (PAM);    All-optical logic gate;   

DOI  :  10.1016/j.optcom.2015.07.013

来源: Elsevier

【 摘 要 】

In this paper is presented the all-optical AND and OR gates with high contrast ratio in a single interferometric configuration, i.e., when two logic signals are modulated in the input of the interferometer, so we have the OR gate in the first output and the AND gate in the second output. These logic gates were obtained by numerical investigation of the Mach-Zehnder interferometer constituted of dual-core nonlinear photonic crystal fiber operating with ultrashort fundamental solitons of 100 fs. To represent the logic information, pulse amplitude modulation by amplitude shift-keying was used. (C) 2015 Elsevier B.V. All rights reserved.

【 授权许可】

Free