  We formulate the energy conversion efficiency from a high-order soliton to
fundamental solitons by including the influence of interpulse Raman scattering
in the fission process. The proposed analytical formula agrees closely with
numerical results of the generalized nonlinear Schrodinger equation as well as
to experimental results, while the resulting formulation significantly alters
the energy conversion efficiency predicted by the Raman-independent inverse
scattering method. We also calculate the energy conversion efficiency in
materials of different Raman gain profiles such as silica, ZBLAN and
chalcogenide glasses (As2S3 and As2Se3). It is predicted that ZBLAN glass leads
to the largest energy conversion efficiency of all four materials. The energy
conversion efficiency is a notion of utmost practical interest for the design
of wavelength converters and supercontinuum generation systems based on the
dynamics of soliton self-frequency shift.
