  We demonstrate radiation mechanism exhibited by higher order soliton. In a
course of its evolution higher order soliton emits polychromatic radiation
resulting in appearance of multipeak frequency comb like spectral band. The
shape and spectral position of this band can be effectively controlled by the
relative strength of the third order dispersion. An analytical description is
completely corroborated by numerical simulations. An analogy between this
radiation and the radiation of moving charges is presented. For longer pulses
the described effect persists also under the action of higher order
perturbations such as Raman and self-steepening.
