TY - JOUR
T1 - Stabilization of multibeam necklace solitons in circular arrays with spatially modulated nonlinearity
AU - Kartashov, Yaroslav V.
AU - Malomed, Boris A.
AU - Vysloukh, Victor A.
AU - Torner, Lluis
PY - 2009/11/11
Y1 - 2009/11/11
N2 - We consider necklace solitons supported by circular waveguide arrays with out-of-phase modulation of nonlinearity and linear refractive index. Such two-dimensional necklace solitons appear as rings of multiple out-of-phase bright spots. We show that necklace solitons are stable if their peak intensity is low or moderate and that the domain of stability shrinks with increasing nonlinearity modulation depth. However, we find that the stability domains expand with increasing number of necklace spots.
AB - We consider necklace solitons supported by circular waveguide arrays with out-of-phase modulation of nonlinearity and linear refractive index. Such two-dimensional necklace solitons appear as rings of multiple out-of-phase bright spots. We show that necklace solitons are stable if their peak intensity is low or moderate and that the domain of stability shrinks with increasing nonlinearity modulation depth. However, we find that the stability domains expand with increasing number of necklace spots.
UR - http://www.scopus.com/inward/record.url?scp=70450235143&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.80.053816
DO - 10.1103/PhysRevA.80.053816
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AN - SCOPUS:70450235143
SN - 1050-2947
VL - 80
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 5
M1 - 053816
ER -