  Robust stimulated Raman exact passages are requisite for controlling
nonlinear quantum systems, with the wide applications ranging from ultracold
molecules, non-linear optics to superchemistry. Inspired by shortcuts to
adiabaticity, we propose the fast-forward scaling of stimulated Raman adiabatic
processes with the nonlinearity involved, describing the transfer from an
atomic Bose-Einstein condensate to a molecular one by controllable external
fields. The fidelity and robustness of atom-molecule conversion are shown to
surpass those of conventional adiabatic passages, assisted by fast-forward
driving field. Finally, our results are extended to the fractional stimulated
Raman adiabatic processes for the coherent superposition of atomic and
molecular states.
