inated by making it sufficiently incoherent along the transverse dimension [54]. An
experimental setup similar to that shown in Figure 13.2 was used. The only difference
was that a cylindrical lens was used to focus the beam in only one direction, say, the
x direction, creating a highly elliptical beam in the shape of a stripe. The nonlinearity
was turned on by applying an electric field of 2.7 kV/cm, and the beam formed a stable
soliton stripe. When the beam was fully coherent, the soliton suffered from the trans-
verse instability and broke up into filaments. When the beam was made incoherent in
the ...
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