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Polarization modulation instability in a nonlinear fiber Kerr resonator
Optics Letters
|September 15, 2020
Summary
We observed polarization modulation instability (PMI) in a nonlinear fiber Kerr resonator. Controlling intracavity birefringence alters temporal patterns, showing stationary or period-doubled dynamics, offering insights into modulation instability control.
Area of Science:
- Nonlinear optics
- Fiber optics
- Photonics
Background:
- Polarization modulation instability (PMI) is a phenomenon in nonlinear optical systems.
- Understanding PMI is crucial for controlling light propagation in optical fibers and resonators.
Purpose of the Study:
- To experimentally and numerically investigate polarization modulation instability (PMI) in a nonlinear fiber Kerr resonator.
- To explore the influence of intracavity birefringence on PMI dynamics.
- To provide insights into controlling modulation instability in multimode Kerr resonators.
Main Methods:
- Experimental setup using a 12 m long fiber ring resonator with a polarization controller.
- Numerical simulations based on an Ikeda map for two orthogonally polarized modes.
- Analysis of temporal patterns generated by PMI under varying birefringence levels.
Main Results:
- Observed PMI in a nonlinear fiber Kerr resonator, phased-matched by relative phase detuning between polarization modes.
- Demonstrated that varying intracavity birefringence leads to either stationary or period-doubled temporal patterns.
- Experimental results showed good agreement with numerical simulations.
Conclusions:
- Intracavity birefringence is a key parameter for controlling PMI dynamics in fiber Kerr resonators.
- The study offers new insights into the modulation instability phenomenon in multimode Kerr resonators.
- This work paves the way for advanced control of nonlinear phenomena in photonic systems.
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