A design procedure for fan-out improvement in all-optical photonic crystal logic design

In this paper, a general method is proposed to improve the fan-out parameter for all-optical logic gates and functions. Two different types of devices are designed to increase the fan-out of a logic operation and its inverted logic. Nonlinear cavities are used to design driving units. Silicon nanocr...

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Bibliographic Details
Published in:Optical and quantum electronics 2019-10, Vol.51 (10), p.1-13, Article 340
Main Authors: Sharifi, Hojjat, Hamidi, Seyedeh Mehri, Navi, Keivan
Format: Article
Language:English
Subjects:
BLOWERS
Characterization and Evaluation of Materials
Computer Communication Networks
CRYSTALS
DESIGN
Electrical Engineering
EXPANSION
Fanout
Field programmable gate arrays
Finite difference time domain method
Frequency shift
Lasers
Logic circuits
Logic design
Nanocrystals
NANOSCIENCE AND NANOTECHNOLOGY
NANOSTRUCTURES
NONLINEAR PROBLEMS
Optical Devices
Optics
Photonic crystals
Photonics
Physics
Physics and Astronomy
Plane waves
SILICON
Time domain analysis
WAVE PROPAGATION
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Description
Summary:In this paper, a general method is proposed to improve the fan-out parameter for all-optical logic gates and functions. Two different types of devices are designed to increase the fan-out of a logic operation and its inverted logic. Nonlinear cavities are used to design driving units. Silicon nanocrystal is used as the nonlinear material to create the required frequency shift for different values of input power. Plane wave expansion and finite difference time domain methods are used to simulate and analyze the proposed structures. The propagation delay of the proposed structure is less than 1.5 ps and the maximum required power for fan-out of three is 15 W.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-019-2052-0