Light propagation in double-periodic nonlinear photonic lattices in lithium niobate

Publication date
2007-08
Document type
Research article
Author
Smirnov, E.
Rüter, Christian E.
Shandarova, K.
Shandarov, V.
Organisational unit
Technische Universität Clausthal
DOI
URI
Scopus ID
ISSN
Series or journal
Applied Physics B Lasers and optics
Periodical volume
88
Periodical issue
3
First page
359
Last page
362
Part of the university bibliography
Nein
Abstract
Single- and double-periodic one-dimensional photonic lattices are formed in lithium niobate using both titanium in-diffusion and holographic grating recording. We investigate linear band structures and diffraction properties of such superlattices and observe a decrease of discrete diffraction with increasing modulation depth of the second superimposed lattice. In weakly modulated superlattices with tailored diffraction properties, our results demonstrate the formation of discrete solitons having a propagation constant inside the extra mini-gap formed inside the Brillouin zone. © 2007 Springer-Verlag.
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