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Handbook of Optical Fibers pp 421–474Cite as

A Variety of Dynamical Settings in Dual-Core Nonlinear Fibers

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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 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 \(\mathcal{P}\mathcal{T}\) (parity-time)-symmetric solitons in the dual-core nonlinear dispersive coupler with mutually balanced linear gain and loss applied to the two cores.

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Acknowledgements

I thank Professor Gang-Ding Peng for his invitation to join the production of this volume and to write the present chapter.

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  1. Faculty of Engineering, Department of Physical Electronics, School of Electrical Engineering, Tel Aviv University, Tel Aviv, Israel

    Boris A. Malomed

  2. ITMO University, St. Petersburg, Russia

    Boris A. Malomed

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  1. Photonics and Optical Communications, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW, Australia

    Gang-Ding Peng

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Malomed, B.A. (2019). A Variety of Dynamical Settings in Dual-Core Nonlinear Fibers. In: Peng, GD. (eds) Handbook of Optical Fibers. Springer, Singapore. https://doi.org/10.1007/978-981-10-7087-7_70

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