Spectral pulse transformations and phase transitions in quadratic nonlinear waveguide arrays
Date
2011-11-07
Authors
Setzpfandt, Frank
Sukhorukov, Andrey
Schiek, Roland
Solntsev, Alexander S.
Ricken, Raimund
Min, Yoohong
Sohler, Wolfgang
Pertsch, Thomas
Kivshar, Yuri
Neshev, Dragomir
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Abstract
We study experimentally and numerically the dynamics of a
recently found topological phase transition for discrete quadratic solitons
with linearly coupled SH waves. We find that, although no stationary states
are excited in the experimental situation, the generic feature of the phase
transition of the SH is preserved. By utilizing simulations of the coupled
mode equations we identify the complex processes leading to the phase
transition involving spatial focusing and the generation of new frequency
components. These distinct signatures of the dynamic phase transition are
also demonstrated experimentally.
Description
Keywords
Nonlinear optics, Parametric processes, Ultrafast nonlinear optics
Citation
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Source
Optics Express
Type
Journal article
Book Title
Entity type
Access Statement
Open Access