All-fiber nonlinearity- and dispersion-managed dissipative soliton nanotube mode-locked laser

We report dissipative soliton generation from an Yb-doped all-fiber nonlinearity-and dispersion-managed nanotube mode-locked laser. A simple all-fiber ring cavity exploits a photonic crystal fiber for both nonlinearity enhancement and dispersion compensation. The laser generates stable dissipative solitons with large linear chirp in the net normal dispersion regime. Pulses that are 8.7 ps long are externally compressed to 118 fs, outperforming current nanotube-based Yb-doped fiber laser designs. (C) 2015 AIP Publishing LLC.