Spatial frequency combs and supercontinuum generation in one-dimensional photonic lattices
Publication date
2008-10
Document type
Research article
Author
Organisational unit
Technische Universität Clausthal
Scopus ID
Pubmed ID
Series or journal
Physical review letters
Periodical volume
101
Periodical issue
18
Part of the university bibliography
Nein
Abstract
We experimentally demonstrate the formation of spatial supercontinuum and of spatial frequency combs in nonlinear photonic lattices. This process results from multiple four-wave mixing initiated by launching two Floquet-Bloch modes into a one-dimensional lattice. The dynamics of the waves is sensitively dependent on the transverse momentum difference between the two initial modes: when this momentum difference is commensurable with the lattice momentum the waves evolve into a frequency comb, whereas when it is incommensurable the waves evolve into a supercontinuum of spatial frequencies.
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