title: All-fiber mode-locked fiber laser.
abstract: An environmentally stable mode-locked fiber laser based on nonlinear polarization rotation is experimentally demonstrated. The laser is based on a novel laser configuration that has negligible low-power steady-state reflectivity from one side and, consequently, no CW gain. The laser is self starting and the configuration is implementable as an all-fiber laser with standard polarization-maintaining fiber-pigtailed components. A pulse duration of 5.6 ps is obtained at a repetition rate of 5.96 MHz and at an average power of 8 mW. As an application of the proposed laser configuration, 213 mW of supercontinuum (600-1750 nm) was demonstrated from a fiber laser system with no sections of free-space optics.
authors.affiliation: Department of Physics, University of Aarhus, DK-8000 Aarhus C, Denmark. ckn@phys.au.dk
authors.forename: Carsten Krogh
authors.initials: CK
authors.lastname: Nielsen
authors.forename: Søren Rud
authors.initials: SR
authors.lastname: Keiding