Thermalization of orbital angular momentum beams in multimode optical fibers
arXiv:2112.13696 · doi:10.1103/PhysRevLett.128.243901
Abstract
We present a general theory of thermalization of light in multimode optical fibers, including optical beams with nonzero orbital angular momentum or vortex beams. A generalized Rayleigh-Jeans distribution of asymptotic mode composition is obtained, based on the conservation of the angular momentum. We confirm our predictions by numerical simulations and experiments based on holographic mode decomposition of multimode beams. This establishes new constraints for the achievement of spatial beam self-cleaning, giving previously unforeseen insights into the underlying physical mechanisms.
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- Rayleigh-Jeans thermalization vs beam cleaning in multimode optical fibers
- Random matrix model of Kolmogorov-Zakharov turbulence
- Coherence properties of light in highly multimoded nonlinear parabolic fibers under optical equilibrium conditions
- Thermalization of the Ablowitz-Ladik lattice in the presence of non-integrable perturbations
- Spatio-temporal thermalization and adiabatic cooling of guided light waves
- Universal Routing of Light via Optical Thermodynamics
- Dynamical thermalization and turbulence in social stratification models
- Orbital Frontiers: Harnessing Higher Modes in Photonic Simulators
- Irreversible thermalization vs reversible dynamics mediated by anomalous correlators: Wave turbulence theory and experiments in optical fibers
- Spatio-temporal equilibrium thermodynamics of guided optical waves at positive and negative temperatures