Since　the　first　report　of　graphene-based　ultrafast　erbium-doped　fiber　laser　in　2009　[1],　most　of　follow-up　studies　have　been　concentrated　on　performance　optimization　and　improvement　of　graphene　saturable　absorber　mode-locked　or　Q-switched　lasers　at　1.5μm　wavelength-band.　By　contrast,　fewer　studies　have　been　reported　on　other　wavelengths　although　graphene　based　saturable　absorber　has　a　distinguished　advantage　:　a　broad　wavelength-independent　saturable　absorption　range,　which　covers　the　wavelength　from　visible　to　mid-IR.　More　recently,　a　study　on　graphene　mode-locked　Yb-doped　fiber　laser　at　1.07m　has　been　reported　[2];　the　average　output　power　was　about　0.37mW　at　repetition　frequency　of　0.9MHz,　corresponding　to　single　pulse　energy　of　0.41nJ.　Here,　we　report　much　higher　pulse　energy　generation　at　1.07m　from　an　Yb-doped　double-clad　fiber　laser　mode-locked　by　a　graphene-deposited　broadband　reflective　mirror　in　a　ring　cavity.　The　average　output　power　is　170mW　and　the　repetition　rate　is　1.04MHz,　corresponding　to　single　pulse　energy　of　163nJ.　©　2011　IEEE.