title: Watt-level, continuous-wave bismuth-doped all-fiber laser operating at 1.7 μm.
abstract: A watt-level all-fiber laser radiating at the wavelength of 1.7 μm in a continuous-wave regime was developed by using bismuth-doped high-germania optical fiber. A maximum slope efficiency of 33% with respect to the launched pump power was achieved. The dependencies of the slope efficiencies of bismuth-doped fiber laser versus the length of active fiber and reflectivity of the output mirror were obtained.
authors.forename: S V
authors.initials: SV
authors.lastname: Firstov
authors.forename: S V
authors.initials: SV
authors.lastname: Alyshev
authors.forename: K E
authors.initials: KE
authors.lastname: Riumkin
authors.forename: M A
authors.initials: MA
authors.lastname: Melkumov
authors.forename: O I
authors.initials: OI
authors.lastname: Medvedkov
authors.forename: E M
authors.initials: EM
authors.lastname: Dianov