TY - JOUR
T1 - Spectral pulse transformations and phase transitions in quadratic nonlinear waveguide arrays
AU - Setzpfandt, Frank
AU - Sukhorukov, Andrey A.
AU - Neshev, Dragomir N.
AU - Schiek, Roland
AU - Solntsev, Alexander S.
AU - SolntsevRicken, Raimund
AU - Min, Yoohong
AU - Sohler, Wolfgang
AU - Kivshar, Yuri
AU - Pertsch, Thomas
PY - 2011/11/7
Y1 - 2011/11/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=80755187731&partnerID=8YFLogxK
U2 - 10.1364/OE.19.023188
DO - 10.1364/OE.19.023188
M3 - Article
SN - 1094-4087
VL - 19
SP - 23188
EP - 23201
JO - Optics Express
JF - Optics Express
IS - 23
ER -