Demonstration of a directed XNOR/XOR optical logic circuit based on silicon Mach–Zehnder interferometer

2017 ◽  
Vol 395 ◽  
pp. 183-187 ◽  
Author(s):  
Jianfeng Ding ◽  
Lin Yang ◽  
Qiaoshan Chen ◽  
Lei Zhang ◽  
Ping Zhou
Keyword(s):  
Logic Circuit ◽  
Zehnder Interferometer ◽  
Optical Logic ◽  
Mach Zehnder Interferometer

All-Optical Logic Gates and Boolean Expressions in a Photonic Mach–Zehnder Interferometer

2019 ◽  
Vol 40 (1) ◽  
pp. 7-16 ◽  
Author(s):  
G. S. B Filho ◽  
F. L. B Martins ◽  
M. F Junior ◽  
A. A. R Araújo ◽  
J. C Nascimento ◽  
...  
Keyword(s):  
Logic Gates ◽  
Zehnder Interferometer ◽  
High Peak Power ◽  
Optical Logic ◽  
All Optical ◽  
Crystal Fibers ◽  
Complex Circuits ◽  
Dual Core ◽  
Mach Zehnder Interferometer ◽  
Boolean Expressions

Abstract In this paper, we numerically investigate the behavior of solitons in a Mach–Zehnder interferometer made of dual-core photonic crystal fibers. The goal was to obtain logic gates with modulated information in ON-OFF keying (OOK). We considered ultra-short solitonic pulses propagating throughout the system in two distinct regimes of pump power and obtained the OR and XOR gates with fundamental solitons. In addition, the A→B and A←B Boolean expressions were obtained with high peak power. As these logical expressions were obtained with the same length of the obtained logic gates, they are important and therefore can be used to save space in the design of complex circuits.

Performance comparison of all-optical logic gates using electro-optic effect in MZI-based waveguide switch at 1.46 µm

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sehajpal Kaur ◽  
Maninder Lal Singh ◽  
Priyanka ◽  
Mandeep Singh
Keyword(s):  
Signal Processing ◽  
Logic Gates ◽  
Zehnder Interferometer ◽  
Complex Signal ◽  
Computational Techniques ◽  
Optical Logic ◽  
Optical Logic Gates ◽  
Electro Optic ◽  
All Optical ◽  
Mach Zehnder Interferometer

AbstractNowadays to process information on high speed and to reduce the complexity of digital devices, optical digital computational techniques are required. Many complex signal processing functions such as multiplexing, optical switching, addressing, coding/decoding are implemented using optical digital computational techniques. Optical logic gates are one of the most essential computational elements to design combinational and sequential circuits in optical signal processing. In this paper, all optical logic gates are designed with optimized structure of 2 × 2 Mach–Zehnder interferometer optical switch using Ti:LiNbO3 based waveguide at 1.46 µm employing electro-optic effect. Different design structures to realize all-optical logic gates are presented and compared with the previously designed optical logic gates. The mathematical description of all optical logic gates using cascaded structure of Mach–Zehnder interferometer switch is also defined. The performance parameters of designed optical logic gates have been analyzed by beam propagation method and the obtained results are verified by MATLAB.

All-optical logic XOR using differential scheme and Mach-Zehnder interferometer

2002 ◽  
Vol 38 (21) ◽  
pp. 1271 ◽  
Author(s):  
H. Chen ◽  
G. Zhu ◽  
Q. Wang ◽  
J. Jaques ◽  
J. Leuthold ◽  
...  
Keyword(s):  
Zehnder Interferometer ◽  
Optical Logic ◽  
All Optical ◽  
Differential Scheme ◽  
Mach Zehnder Interferometer
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