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Resonant radiation from oscillating higher order solitons.
Optics Express
|September 15, 2015
Summary
Higher-order solitons emit polychromatic radiation, forming a frequency comb-like spectral band. This phenomenon is controllable via third-order dispersion and persists for longer pulses even with higher-order effects.
Area of Science:
- Nonlinear optics
- Optical physics
- Quantum optics
Background:
- Higher-order solitons are fundamental in nonlinear fiber optics.
- Understanding soliton dynamics is crucial for optical communications and spectroscopy.
- Spectral broadening and nonlinear effects in optical pulses are areas of active research.
Purpose of the Study:
- To investigate the radiation mechanism of higher-order solitons.
- To analyze the formation of multipeak frequency comb-like spectral bands.
- To explore the control of spectral properties by third-order dispersion and higher-order perturbations.
Main Methods:
- Analytical description of soliton evolution.
- Numerical simulations to corroborate analytical findings.
- Investigation of the impact of third-order dispersion, Raman scattering, and self-steepening.
Main Results:
- Higher-order solitons exhibit a radiation mechanism emitting polychromatic radiation.
- Formation of a multipeak frequency comb-like spectral band during soliton evolution.
- Effective control over the spectral band's shape and position by third-order dispersion.
- Persistence of the effect for longer pulses under higher-order perturbations.
Conclusions:
- The study elucidates a novel radiation mechanism in higher-order solitons.
- Third-order dispersion offers a means to control the generated spectral features.
- The observed phenomenon is robust and persists under realistic conditions including higher-order effects.
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