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Published on: December 15, 2021
Influence of the Raman effect on dispersion-managed solitons and their interchannel collisions
1Rochester Theory Center for Optical Science and Engineering, Institute of Optics, University of Rochester, Rochester, New York 14627, USA.
Dispersion management in optical fibers reduces Raman-induced soliton frequency shifts. However, it does not significantly alter energy shifts from soliton collisions, posing challenges for high-speed wavelength-division-multiplexed systems.
Area of Science:
- Optical communications
- Nonlinear fiber optics
Background:
- Solitons are fundamental to high-speed optical data transmission.
- The Raman effect and soliton collisions can cause detrimental frequency and energy shifts.
Purpose of the Study:
- To investigate the impact of dispersion management on soliton self-frequency shifts due to the Raman effect.
- To analyze frequency and energy shifts from soliton collisions in dispersion-managed fibers.
Main Methods:
- Numerical calculation of soliton self-frequency shifts.
- Analysis of soliton collision dynamics in a dispersion-managed fiber system.
Main Results:
- Dispersion management effectively suppresses Raman-induced self-frequency shifts.
- Dispersion management does not significantly mitigate accumulated energy shifts from soliton collisions over long distances.
Conclusions:
- Dispersion management is beneficial for controlling certain soliton frequency shifts.
- Accumulated energy shifts in wavelength-division-multiplexed systems remain a concern for high-bit-rate channels.
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