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Article Dans Une Revue Journal of the Optical Society of America B Année : 2013

Snake like light beam propagation in Multimode Periodic Segmented Waveguide

Résumé

In this article it is shown that for specific initial conditions an input beam injected in a Multimode Periodic Segmented Waveguides (MPSW) does not di ract and remains collimated all along the waveguide whereas a speckle like pattern is expected at the output of a multimode structure. This nonintuitive behavior can be explained with the help of ray and wave chaos properties. A modal analysis developed in this article reveals that this nondi ractive beam regime is due to a specific superposition of modes with regularly spaced propagation constants. A discrepancy with the commonly used Equivalent Continuous Waveguide model (ECWG) is also identied.
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Dates et versions

hal-00909845 , version 1 (27-11-2013)

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Pierre Aschieri, Valérie Doya. Snake like light beam propagation in Multimode Periodic Segmented Waveguide. Journal of the Optical Society of America B, 2013, 30 (12), pp.3161. ⟨10.1364/JOSAB.30.003161⟩. ⟨hal-00909845⟩
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