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Stationary and pulsating vector dissipative solitons in nonlinear multimode interference based fiber lasers
Optics Express
|March 4, 2020
Summary
Researchers observed stationary and pulsating vector dissipative solitons in a fiber laser. These group-velocity-locked vector dissipative solitons (GVLVDSs) show coupled polarization dynamics and spectral breathing, advancing soliton research.
Area of Science:
- Nonlinear optics
- Fiber lasers
- Spectroscopy
Background:
- Real-time spectroscopy reveals ultrashort pulse dynamics in dissipative systems.
- Transient soliton dynamics have been observed on various timescales.
Purpose of the Study:
- To experimentally observe stationary and pulsating vector dissipative solitons.
- To investigate the dynamics of group-velocity-locked vector dissipative solitons (GVLVDSs) in a nonlinear multimode interference (NL-MMI) fiber laser.
Main Methods:
- Utilizing a nonlinear multimode interference (NL-MMI) based fiber laser with net normal dispersion.
- Employing Dispersive Fourier transform (DFT) based polarization-resolved measurement.
- Analyzing transient polarization dynamics and long-term evolution of solitons.
Main Results:
- Observation of both stationary and pulsating GVLVDSs.
- Pulsating GVLVDSs exhibit recurrent spectral breathing and energy oscillation.
- Synchronous pulsating behaviors in orthogonal polarization components due to cross-phase modulation trapping.
Conclusions:
- Demonstrated stationary and pulsating GVLVDSs in a net normal dispersion fiber laser.
- Understanding the interplay between polarization, spectral dynamics, and energy oscillations in vector solitons.
- Findings contribute to the comprehension of soliton pulsation with vectorial properties.
