  The dominant method of energy loss by a loop of cosmic D-strings in models of
warped brane inflation is studied. It is shown that the energy loss via
Ramond-Ramond field radiation can dominate by many orders of magnitude over the
energy radiation via gravitational wave emission. The ratio of these two energy
loss mechanisms depends on the energy scale of inflation, the mass scale of
string theory and whether it is a single-throat or a multi-throat inflationary
scenario. This can have important consequences for the detection of cosmic
superstrings in the near future. It is argued that the bounds from cosmic
microwave background anisotropies and big bang nucleosynthesis are the dominant
cosmological sources to constrain the physical parameters of the network of
cosmic superstrings, whereas the role of the gravitational wave-based
experiments may be secondary.
