Solitons are wave packets that can propagate without changing shape by balancing
nonlinear effects with the effects of dispersion. In photonics, they have underpinned …

The recently discovered pure-quartic solitons, arising from the interaction of quartic
dispersion and Kerr nonlinearity, open the door to unexplored soliton regimes and ultrafast …

We numerically solve a generalized nonlinear Schrödinger equation and find a family of
pure-quartic solitons (PQSs), existing through a balance of positive Kerr nonlinearity and …

Temporal optical solitons have been the subject of intense research due to their intriguing
physics and applications in ultrafast optics and supercontinuum generation. Conventional …

Optical temporal solitons, arising from self-phase modulation and negative quadratic (β 2)
dispersion, are Galilean invariant, and therefore their properties do not depend on their …

Multicolor optical solitons mediated by quadratic nonlinearities have been observed
experimentally during the last few years in a variety of materials and geometries in a number …

Ultrashort pulse generation hinges on the careful management of dispersion. Traditionally,
this has exclusively involved second-order dispersion, with higher-order dispersion treated …

Pure quartic soliton (PQS) is a new class of solitons demonstrated in recent years and
provides innovations in nonlinear optics and its applications. Generating PQSs in micro …

We explore the possibility of exciting the so-called quartic solitons in specially designed slot
waveguides based on silicon and silica or silicon nanocrystals. This requires the excitation …

This article serves as an introduction to the focus issue on optical solitons. After a short
review of the history of solitons and the field of integrable systems, a brief overview of the …