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Published on: July 24, 2015
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Attenuation, dispersion and nonlinearity effects in graphene-based waveguides
Almir Wirth Lima1, João Cesar Moura Mota2, Antonio Sergio Bezerra Sombra1
1Laboratory of Telecommunications and Materials Science and Engineering, Fortaleza, Ceará, Brazil ; Department of Teleinformatics Engineering, DETI, Center of Technology, Federal University of Ceará, Fortaleza, Ceará, Brazil.
Beilstein Journal of Nanotechnology
|July 15, 2015
Summary
Researchers simulated ultrashort optical pulses in graphene nanoribbon waveguides, finding that pulse shape can be controlled by input power and graphene
Area of Science:
- Photonics and Nanotechnology
- Optical Communications
Background:
- Ultrashort optical pulses are crucial for modern telecommunications.
- Graphene nanoribbon waveguides offer unique properties for optical signal manipulation.
Purpose of the Study:
- To simulate and analyze the behavior of ultrashort optical pulses propagating through graphene nanoribbon waveguides.
- To investigate the effects of attenuation, high-order dispersion, and nonlinear effects on pulse propagation.
- To determine methods for controlling output pulse shapes.
Main Methods:
- Detailed simulation of ultrashort optical pulse propagation.
- Analysis of Gaussian and hyperbolic secant input pulses.
- Investigation of graphene nanoribbon waveguide parameters, including chemical potential.
Main Results:
- Observed significant changes in pulse shapes due to various physical effects.
- Demonstrated that pulse shape is controllable by adjusting input signal power.
- Showcased the influence of the graphene nanoribbon's chemical potential on pulse characteristics.
Conclusions:
- Pulse shaping in graphene nanoribbon waveguides is achievable through careful control of input power and chemical potential.
- The findings are applicable to the design of various nanophotonic devices.
- This research contributes to advancements in optical communication and nanophotonic device engineering.
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