1070 NM passively mode-locked ytterbium-doped fiber soliton laser with SWNT/PMMA saturable absorber

We report an Yb-doped fiber soliton laser emitting a femtosecond pulse train at 1.07 µm using an SWNT-incorporated PMMA saturable absorber. Stable passive mode locking was obtained at a pump power of 179 mW, and a 543-fs, 15.1-MHz pulse train was generated.