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Cavity-birefringence-dependent vector pure-quartic soliton fiber laser
Optics Express
|November 29, 2023
Summary
This study numerically observes vector pure-quartic solitons (PQSs) in fiber lasers. It details their formation, evolution through distinct stages, and polarization dynamics influenced by cavity birefringence.
Area of Science:
- Nonlinear Optics
- Fiber Laser Physics
- Ultrafast Photonics
Background:
- Pure-quartic solitons (PQSs) are crucial for high-energy pulse generation.
- Understanding soliton dynamics is key to advancing laser technology.
Purpose of the Study:
- To numerically observe the generation and evolution of vector PQSs in mode-locked fiber lasers.
- To investigate the influence of cavity birefringence on vector PQS dynamics.
Main Methods:
- Numerical simulations using coupled Ginzburg-Landau equations.
- Analysis of vector PQS buildup dynamics in birefringent fiber lasers.
Main Results:
- Vector PQSs evolve through energy amplification, pulsation (due to cross-phase modulation), and stabilization.
- Elliptical and near-linear polarization PQSs form based on birefringence strength and energy balance.
- Transition from vector to scalar PQSs observed with increased birefringence due to walk-off effects.
Conclusions:
- Cavity birefringence significantly impacts vector PQS formation and evolution.
- Soliton trapping and walk-off effects dictate polarization dynamics.
- Provides insights into ultrafast transient processes and PQS generation in fiber lasers.
