Journal ArticleDOI
All-Optical Multiple Logic Gates Based on Spatial Optical Soliton Interactions
Amin Ghadi,Sepideh Sohrabfar +1 more
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TLDR
In this article, all-optical logic gates with attraction and repulsive interactions of coherent spatial optical solitons have been designed in a bulky nonlinear Kerr medium and the logic gates comprise logical AND and OR gates by the attraction of two obliquely propagating inphase spatial optical sensors and logical NOR and XNOR gates based on repulsive interaction among three out of phase spatial optical sensor nodes.Abstract:
In this letter, all-optical logic gates with attraction and repulsive interactions of coherent spatial optical solitons have been designed in a bulky nonlinear Kerr medium. The logic gates comprise logical AND and OR gates by the attraction of two obliquely propagating inphase spatial optical solitons and logical NOR and XNOR gates based on repulsive interaction among three out of phase spatial optical solitons. The numerical results show that soliton interactions perform a high contrast power level between ON/OFF states. The proposed model is applicable to design phase-modulated logical gates too. The simplicity and ease for fabrication of the proposed logic gates would be a potential key component for the future of all-optical logical photonic devices and computational photonic circuits.read more
Citations
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Journal ArticleDOI
Nonlinear control of logic structure of all-optical logic devices using soliton interactions
TL;DR: In this article, a three-soliton solution for solving the coupled nonlinear Schrodinger equations is presented, and the condition for forming all-optical logic devices (AOLDs) is discussed.
Journal ArticleDOI
An investigation on the cascaded operation of photonic crystal based all optical logic gates and verification of De Morgan’s law
E. G. Anagha,R. K. Jeyachitra +1 more
TL;DR: In this paper, a new set of configurations are proposed to implement simple and highly compact photonic crystal based all-optical logic AND and OR gates, which operate at the telecommunication wavelength of 1550 nm and consume very low power compared to the existing designs.
Journal ArticleDOI
Soliton interactions for optical switching systems with symbolic computation
TL;DR: In this paper, interactions among three solitons are investigated analytically and the influences of various parameters on optical switches' turning on and off functions are analyzed, and results are also useful for the design of all optical logic gates.
Journal ArticleDOI
Amplitude‐Controlled Electromagnetic Pulse Switching Using Waveguide Junctions for High‐Speed Computing Processes
TL;DR: A technique for the design of pulse-based switching devices for the computing of fundamental decision-making processes and develops two devices: a comparator which can calculate the largest value between two real-valued numbers and a pulse director which exploits the reciprocity of waveguide junctions.
References
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Book
Nonlinear Fiber Optics
TL;DR: The field of nonlinear fiber optics has advanced enough that a whole book was devoted to it as discussed by the authors, which has been translated into Chinese, Japanese, and Russian languages, attesting to the worldwide activity in the field.
Journal ArticleDOI
Ultrafast integrable and reconfigurable XNOR, AND, NOR, and NOT photonic logic gate
TL;DR: A novel, simple, compact, and integrable scheme of reconfigurable and ultrafast photonic logic gate is demonstrated, based on a single semiconductor optical amplifier (SOA) and able to process ultrafast signals.
Journal ArticleDOI
Simulation and Demonstration of Directed XOR/XNOR Logic Gates Using Two Cascaded Microring Resonators
Yonghui Tian,Li Dezhao,Zilong Liu,Huifu Xiao,Zhao Guolin,Jianhong Yang,Zhao Yongpeng,Genliang Han,Xiaoping Gao +8 more
TL;DR: Numerical simulation results indicate that the length difference between the upper waveguide and the under waveguide can change the output spectrum characteristics of the device, which acts like a Mach–Zehnder interferometer (MZI).
Journal ArticleDOI
Fully Integrated AND and OR Optical Logic Gates
TL;DR: The calculated fabrication tolerances of the suggested devices show that the rods radii of the ring cavities need to be controlled with no more than ±10% and ±3% fabrication errors for optical OR and AND gates, respectively.