Abstract
We present the numerical results of both head-on and non-head-on collisions
between two stable dissipative optical bullets (DOBs) in a three-dimensional complex
Ginzburg-Landau equation with cubic-quintic nonlinearity. The system parameters
chosen are in the coexistence regions for both stationary DOBs and double bullet
complexes (DBCs). By varying the initial velocities v and the impact parameters P
which represent the distance between the parallel trajectories of colliding bullets,
we observe three generic properties of the bullets: fusion, fission, and
quasi-elastic collisions. A novel and interesting behavior is observed in the
results, in which two or three DBCs occur in non-head-on collisions at intermediate
values of v.
© 2011 Chinese Optics Letters
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