Abstract
The chapter 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 groupvelocity 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.
| Original language | English |
|---|---|
| Title of host publication | Handbook of Optical Fibers |
| Publisher | Springer Singapore |
| Pages | 421-474 |
| Number of pages | 54 |
| ISBN (Electronic) | 9789811070877 |
| ISBN (Print) | 9789811070853 |
| DOIs | |
| State | Published - 1 Jan 2019 |
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