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We experimentally demonstrate an all-fiber erbium-doped fiber laser operating in the large normal dispersion regime. The laser is mode-locked by use of nonlinear polarization rotation and generates dissipative solitons (DSs) with large positive chirp and steep spectral edges. Within the cavity, there is no additional spectral filter used for self-starting and stabilizing the mode-locking of the laser. The output DSs have a duration of 30.5 ps with pulse energies up to 12 nJ, which can be compressed externally to 240 fs.
Date of Publication: Oct. 2011