  We report on the observation of both stable dissipative solitons and
noise-like pulses with the presence of strong Raman scattering in a relatively
short all-normal-dispersion Yb-doped fiber laser. We show that Raman scattering
can be filtered out by intracavity filter. Furthermore, by appropriate
intracavity polarization control, the Raman effect can be utilized to generate
broadband noise-like pulses (NLPs) with bandwidth up to 61.4 nm. To the best of
our knowledge, this is the broadest NLP achieved in all-normal-dispersion fiber
lasers
