  By effectively controlling the dipole-dipole interaction, we investigate the
characteristics of the ground state of bright solitons in a spin-orbit coupled
dipolar Bose-Einstein condensate. The dipolar atoms are trapped within a
double-lattice which consists of a linear and a nonlinear lattice. We derive
the motion equations of the different spin components, taking the controlling
mechanisms of the diolpe-dipole interaction into account. An analytical
expression of dipole-dipole interaction is derived. By adjusting the dipole
polarization angle, the dipole interaction can be adjusted from attraction to
repulsion. On this basis, we study the generation and manipulation of the
bright solitons using both the analytical variational method and numerical
imaginary time evolution. The stability of the bright solitons is also analyzed
and we map out the stability phase diagram. By adjusting the long-range
dipole-dipole interaction, one can achieve manipulation of bright solitons in
all aspects, including the existence, width, nodes, and stability. Considering
the complexity of our system, our results will have enormous potential
applications in quantum simulation of complex systems.
