  We study the tension of vortices in N=2 SQCD broken to N=1 by a
superpotential W(\Phi), in color-flavor locked vacua. The tension can be
written as T = T_{BPS} + T_{non BPS}. The BPS tension is equal to 4\pi|\T|
where we call \T the holomorphic tension. This is directly related to the
central charge of the supersymmetry algebra. Using the tools of the
Cachazo-Douglas-Seiberg-Witten solution we compute the holomorphic tension as a
holomorphic function of the couplings, the mass and the dynamical scale: \T =
\sqrt{W'^2+f}. A first approximation is given using the generalized Konishi
anomaly in the semiclassical limit. The full quantum corrections are computed
in the strong coupling regime using the factorization equations that relate the
N=2 curve to the N=1 curve. Finally we study the limit in which the non-BPS
contribution can be neglected because small with respect to the BPS one. In the
case of linear superpotential the non-BPS contribution vanishes exactly and the
holomorphic tension gets no quantum corrections.
