Helical Versus Fundamental Solitons in Optical Fibers Malomed, Boris en_US Peng, Gang-Ding en_US Chu, Pak en_US 2021-11-25T14:07:03Z 2021-11-25T14:07:03Z 2001 en_US
dc.description.abstract We consider solitons in a nonlinear optical fiber with a single polarization in a region of parameters where it carries exactly two distinct modes, viz., the fundamental one and the first-order helical mode. From the viewpoint of applications to dense-WDM communication systems, this opens a way to double the number of channels carried by the fiber. Aside from that, experimental observation of helical (spinning) solitons (that can be launched and detected, using helicity-generating phase masks) and collisions between them and with fundamental solitons in (ordinary or hollow) optical fibers is an issue of fundamental interest, especially because it has been very recently found that spatiotemporal spinning solitons in bulk optical media with various nonlinearities are unstable. We introduce a system of coupled nonlinear Schrödinger equations for fundamental and helical modes, computing nonstandard values of the cross-phase-modulation coupling constants in it, and investigate, analytically and numerically, results of "complete" and "incomplete" collisions between solitons carried by the two modes. We conclude that the collision-induced crosstalk is partly attenuated in comparison with the usual WDM system, which sometimes may be crucially important, preventing merger of the colliding solitons into a breather. The interaction between the two modes is found to be additionally strongly suppressed in comparison with that in the WDM system in the case when a dispersion-shifted or dispersion-compensated fiber is used. en_US
dc.identifier.issn 0281-1847 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Helical Versus Fundamental Solitons in Optical Fibers en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Engineering
unsw.relation.ispartofjournal Physica Scripta en_US
unsw.relation.ispartofpagefrompageto 386-390 en_US
unsw.relation.ispartofvolume 63 en_US
unsw.relation.originalPublicationAffiliation Malomed, Boris en_US
unsw.relation.originalPublicationAffiliation Peng, Gang-Ding, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Chu, Pak, Electrical Engineering & Telecommunications, Faculty of Engineering, UNSW en_US School of Electrical Engineering and Telecommunications *
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