Solitons and nonlinear dynamics in dual-core optical fibers

Abstract

The article provides a survey of (chiefly, theoretical) results obtained for self-trapped modes (solitons) in various models of one-dimensional optical waveguides based on a pair of parallel guiding cores, which combine the linear inter-core coupling with the intrinsic cubic (Kerr) nonlinearity, anomalous group-velocity dispersion, and, possibly, intrinsic loss and gain in each core. The survey is focused on three main topics: spontaneous breaking of the inter-core symmetry and the formation of asymmetric temporal solitons in dual-core fibers; stabilization of dissipative temporal solitons (essentially, in the model of a fiber laser) by a lossy core parallel-coupled to the main one, which carries the linear gain; and stability conditions for PT (parity-time)-symmetric solitons in the dual-core nonlinear dispersive coupler with mutually balanced linear gain and loss applied to the two cores.

A chapter to appear in Handbook of Optical Fibers (G.-D. Peng, Editor: Springer, 2018)

References in corpus (5)

• Visualization of Branch Points in PT-Symmetric Waveguides
• Physical realization of $\mathcal{P}\mathcal{T}$-symmetric potential scattering in a planar slab waveguide
• Spontaneous symmetry breaking of solitons trapped in a double-channel potential
• Symmetric and asymmetric solitons in linearly coupled Bose-Einstein condensates trapped in optical lattices
• Interactions of spatial solitons with fused couplers

Cited by in corpus (4)

• Stabilization of one-dimensional Townes solitons by spin-orbit coupling in a dual-core system
• Dynamical control of solitons in a parity-time-symmetric coupler by periodic management
• Symmetry breaking in a two-component system with repulsive interactions and linear coupling
• Nonlinear dynamics of wave packets in tunnel-coupled harmonic-oscillator traps