title: Watt-level passively mode-locked Er(3+)-doped ZBLAN fiber laser at 2.8  μm.
abstract: We experimentally demonstrated a stable, high-average-power, continuous-wave (CW) passively mode-locked Er(3+)-doped ZBLAN fiber laser at 2.8 μm based on a semiconductor saturable absorber mirror. A stable mode-locked laser with a signal-to-noise ratio of 52 dB and a slope efficiency of 14% was obtained. The highest average output power in excess of 1 W was generated at the incident pump power of 8.2 W, with a pulse repetition rate of 22.56 MHz and pulse duration of 25 ps. To the best of our knowledge, this is the highest average output power of a CW mode-locked ZBLAN fiber laser in the mid-infrared wavelength regime up to now.
authors.forename: Pinghua
authors.initials: P
authors.lastname: Tang
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Qin
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.forename: Chujun
authors.initials: C
authors.lastname: Zhao
authors.forename: Guoqiang
authors.initials: G
authors.lastname: Xie
authors.forename: Shuangchun
authors.initials: S
authors.lastname: Wen
authors.forename: Liejia
authors.initials: L
authors.lastname: Qian
mesh_terms: D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D004871:Erbium / Q000737:chemistry*; D005336:Fiber Optic Technology / Q000295:instrumentation*; D005898:Glass / Q000737:chemistry*; D007834:Lasers
chemical_list: D004871:Erbium