  Motivated by the recent introduction of an integrable coupled massive
Thirring model by Basu-Mallick et al, we introduce a new coupled Soler model.
Further we generalize both the coupled massive Thirring and the coupled Soler
model to arbitrary nonlinear parameter $\kappa$ and obtain exact solitary wave
solutions in both cases. Remarkably, it turns out that in both the models,
because of the conservation laws of charge and energy, the exact solutions we
find seem to not depend on how we parameterize them, and the charge density of
these solutions is related to the charge density of the single field solutions
found earlier by a subset of the present authors. In both the models, a
nonrelativistic reduction of the equations leads to the same conclusion that
the solutions are proportional to those found in the one component field case.
