  We show that disruption of charge-density-wave (stripe) order by charge
transfer excitation, enhances the superconducting phase rigidity in
La_{1.885}Ba_{0.115}CuO_4 (LBCO). Time-Resolved Resonant Soft X-Ray Diffraction
demonstrates that charge order melting is prompt following near-infrared
photoexcitation whereas the crystal structure remains intact for moderate
fluences. THz time-domain spectroscopy reveals that, for the first 2 ps
following photoexcitation, a new Josephson Plasma Resonance edge, at higher
frequency with respect to the equilibrium edge, is induced indicating enhanced
superconducting interlayer coupling. The fluence dependence of the charge-order
melting and the enhanced superconducting interlayer coupling are correlated
with a saturation limit of about 0.5 mJ/cm2. Using a combination of x-ray and
optical spectroscopies we establish a hierarchy of timescales between enhanced
superconductivity, melting of charge order and rearrangement of the crystal
structure.
