0.33 mJ 104.3 W dissipative soliton resonance based on a figure of 9 double clad

We demonstrate, for the first time, to the best of our knowledge, an all-fiber figure-of-9 double-clad Tm-doped fiber laser operating in the dissipative soliton resonance (DSR) regime. Stable mode-locked rectangular pulses are obtained by using the nonlinear amplifying loop mirror (NALM) technique.