Abstract
We study the dynamics of dissipative spatial solitons by using antisymmetric-type spatially inhomogeneous loss that locally modulates an optical medium described by the complex Ginzburg–Landau model. We reveal soliton dynamics by launching input solitons at different positions of the spatial modulation loss profile, including its zero value and positive value. The soliton transverse drift exhibits tilt straightaway propagation except for the oscillation in initial stage. The tilt angle of the soliton drift can be controlled by the modulation parameters. We also investigate the dependences of the tilt angle of the soliton drift on the amplitude of the inhomogeneous loss and the linear loss coefficient.
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