We　demonstrated　two　different　types　of　bound　noise-like　pulses　(NLPs)　in　ytterbium-doped　mode-locked　fiber　lasers　using　the　nonlinear　polarization　rotation　technique.　In　the　anomalous　dispersion　area,　there　were　multiple　spikes　in　the　intensity　autocorrelation　(IAC)　trace.　In　the　normal　dispersion　area,　the　spike　presented　only　in　the　center　the　of　IAC　trace.　The　results　of　the　experiment　show　that　the　bound　state　NLPs　may　have　partial　coherence.