  We report results for solitons in models of waveguides with focusing or
defocusing saturable nonlinearity and a parity-time(PT )-symmetric
complex-valued external potential of the Scarf-II type. The model applies to
the nonlinear wave propagation in graded-index optical waveguides with balanced
gain and loss. We find both fundamental and multipole solitons for both
focusing and defocusing signs of the saturable nonlinearity in such PT
-symmetric waveguides. The dependence of the propagation constant on the
soliton's power is presented for different strengths of the nonlinearity
saturation, S. The stability of fundamental, dipole, tripole, and quadrupole
solitons is investigated by means of the linear-stability analysis and direct
numerical simulations of the corresponding (1+1)-dimensional nonlinear
Schrodinger-type equation. The results show that the instability of the
stationary solutions can be mitigated or completely suppressed, increasing the
value of S.
