# Light dynamics in nonlinear trimers and twisted multicore fibers

@article{CastroCastro2016LightDI, title={Light dynamics in nonlinear trimers and twisted multicore fibers}, author={Claudia Castro-Castro and Yannan Shen and Gowri Srinivasan and Alejandro Aceves and Panayotis G. Kevrekidis}, journal={arXiv: Optics}, year={2016} }

Novel photonic structures such as multi-core fibers and graphene based arrays present unique opportunities to manipulate and control the propagation of light. Here we discuss nonlinear dynamics for structures with a few (2 to 6) elements for which linear and nonlinear properties can be tuned. Specifically we show how nonlinearity, coupling, and parity-time PT symmetric gain/loss relate to existence, stability and in general, dynamical properties of nonlinear optical modes. The main emphasis of…

## 13 Citations

PT symmetry in nonlinear twisted multicore fibers.

- PhysicsOptics letters
- 2017

This work addresses propagation of light in nonlinear twisted multicore fibers with alternating amplifying and absorbing cores that are arranged into the parity-time (PT)-symmetric structure and shows that nonlinearity usually leads to the monotonic reduction of the symmetry-breaking threshold in such fibers.

Standing-wave solutions in twisted multicore fibers

- Physics
- 2021

In the present work, we consider the existence and spectral stability of standing wave solutions to a model for light propagation in a twisted multi-core fiber with no gain or loss of energy.…

Spatiotemporal dynamics in a twisted, circular waveguide array

- Physics
- 2022

We consider the existence and spectral stability of nonlinear discrete localized solutions representing light pulses propagating in a twisted multi-core optical fiber. By considering an even number,…

Experimental observation of a cyclic dynamics of solitons in a fiber laser

- PhysicsJournal of Nonlinear Optical Physics & Materials
- 2019

We report an experimental observation of a singular soliton dynamics in a mode-locked erbium doped fiber laser. This is the first time, to our knowledge, that output intensity exhibits a cyclic…

Optical mode stability and dynamics in nonlinear twisted -symmetric structures

- Physics
- 2017

Parity Time (𝒫𝒯-)symmetry and symmetry breaking dynamics is being considered in an optical setting consisting of nonlinear multi-core fibers, where the axis of these cores follow a helical path.

symmetry phase transition of the trimer lattices with balanced gain and loss

- Physics
- 2017

We theoretical investigate the properties of the parity-time -symmetric trimer lattices in which each unit cell contains balanced gain and loss sites. The impacts of different parameters, such as…

Optical vortices in waveguides with discrete and continuous rotational symmetry

- PhysicsJournal of the European Optical Society-Rapid Publications
- 2021

Coherent vortex structures are fascinating physical objects that are widespread in nature: from large scale atmospheric phenomena, such as tornadoes and the Great Red Spot of Jupiter to microscopic…

Solitons in the two-dimensional fractional Schrödinger equation with radially symmetric PT potential

- Physics
- 2020

Modulation instability of discrete angular momentum in coupled fiber rings

- PhysicsJournal of Optics
- 2019

We present an analysis of temporal modulation instability in a ring array of coupled optical fibers. Continuous-wave signals are shown to be unstable to perturbations carrying discrete angular…

Unidirectional reflectionlessness and nonreciprocal perfect absorption in optical waveguide system based on phase coupling between two photonic crystal cavities

- Physics
- 2018

We demonstrate the unidirectional reflectionlessness at exceptional points (EPs) and nonreciprocal perfect absorption near EPs based on phase coupling between two photonic crystal cavities (PCCs) i...

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