Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 1, 2006
|
|
---|---|---|
Article Number | 06014 | |
Number of page(s) | 5 | |
DOI | https://doi.org/10.2971/jeos.2006.06014 | |
Published online | 11 September 2006 |
Regular papers
Switching and instabilities of optical vortices in nonlinear dual-core photonic crystal fibre couplers
1
Departamento de Física Aplicada, Universidade de Vigo, Facultade de Ciencias de Ourense, E-32004 Ourense, Spain
2
Interdisciplinary Modeling Group, Intertech. Departament d’ Òptica, Universitat de València. Dr Moliner, 50E-46100 Burjassot (València), Spain
3
Nonlinear Physics Centre and Centre for Ultrahigh-bandwidth Devices for Optical Systems (CUDOS), Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia
Received:
18
August
2006
We study switching of an optical vortex launched into one core of a dual-core waveguide coupler in a photonic crystal fibre with self-focusing nonlinearity. We analyse how the beam power and the angular momentum associated with the vortex mode transfer to the second core of the coupler in both linear and nonlinear regimes. We describe three major scenarios of the vortex dynamics and reveal novel symmetry-breaking instabilities associated with the vortex nonzero angular momentum.
Key words: Photonic crystal fibres / nonlinear couplers / vortices / switching / angular momentum
© The Author(s) 2006. All rights reserved.
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