Impact of loss on the wave dynamics in photonic waveguide lattices

We analyze the impact of loss in lattices of coupled optical waveguides and find that, in such a case, the hopping between adjacent waveguides is necessarily complex. This results not only in a transition of the light spreading from ballistic to diffusive, but also in a new kind of diffraction that...

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Bibliographic Details
Published in:Physical review letters 2014-09, Vol.113 (12), p.123903-123903, Article 123903
Main Authors: Golshani, M, Weimann, S, Jafari, Kh, Nezhad, M Khazaei, Langari, A, Bahrampour, A R, Eichelkraut, T, Mahdavi, S M, Szameit, A
Format: Article
Language:English
Subjects:
Diffraction
Diffusion
Dispersions
Impact analysis
Joining
Lattices
Spreading
Waveguides
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Summary:We analyze the impact of loss in lattices of coupled optical waveguides and find that, in such a case, the hopping between adjacent waveguides is necessarily complex. This results not only in a transition of the light spreading from ballistic to diffusive, but also in a new kind of diffraction that is caused by loss dispersion. We prove our theoretical results with experimental observations.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.113.123903