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Temporal dissipative structures in optical Kerr resonators with transient loss fluctuation
Optics Express
|November 23, 2021
Summary
Researchers demonstrate a new type of optical soliton in nonlinear cavities, accessible on resonance with loss fluctuations. This emergent dissipative soliton offers potential for ultra-fast pulse generation and soliton micro-combs.
Area of Science:
- Nonlinear Optics
- Quantum Optics
- Optical Cavities
Background:
- Dissipative structures arise from spontaneous symmetry breaking in open systems.
- Optical temporal dissipative solitons in nonlinear Kerr cavities are well-studied but limited to the red-detuned regime.
Purpose of the Study:
- To demonstrate an emergent dissipative soliton state in optical nonlinear cavities.
- To investigate the effect of loss fluctuations on soliton formation.
- To explore potential applications in ultra-fast pulse generation.
Main Methods:
- Numerical investigation using a modified dissipative and Kerr-nonlinear cavity model.
- Analysis of intracavity field patterns and transmitted pulse states.
- Exploration of optical saturable absorption as a method for transient loss fluctuation.
Main Results:
- Observation of a single, bright soliton pulse state at zero detuning.
- Demonstration of an emergent dissipative soliton accessible via self-evolution on resonance.
- Potential for higher power efficiency compared to conventional dissipative Kerr solitons.
- Effect of loss modulation depth and pump intensity on soliton characteristics.
Conclusions:
- The self-starting resonant bright soliton provides new insights into temporal structure formation in dissipative cavities.
- This emergent soliton state may enable the generation of ultra-fast soliton pulse trains and soliton micro-combs.
- The findings expand the operational regimes for dissipative solitons beyond the red-detuned condition.
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