title: 12 W Q-switched Er:ZBLAN fiber laser at 2.8 μm.
abstract: A diode-pumped, actively Q-switched 2.8 μm fiber laser oscillator with an average output power of more than 12 W has been realized through the use of a 35 μm core erbium-doped ZBLAN fiber and an acousto-optic modulator; to our knowledge, this is the first 3 μm pulsed fiber laser in the 10 W class. Pulse energy up to 100 μJ and pulse duration down to 90 ns, corresponding to a peak power of 0.9 kW, were achieved at a repetition rate of 120 kHz.
authors.affiliation: Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan. tokita@laser.kuicr.kyoto‑u.ac.jp
authors.forename: Shigeki
authors.initials: S
authors.lastname: Tokita
authors.forename: Masanao
authors.initials: M
authors.lastname: Murakami
authors.forename: Seiji
authors.initials: S
authors.lastname: Shimizu
authors.forename: Masaki
authors.initials: M
authors.lastname: Hashida
authors.forename: Shuji
authors.initials: S
authors.lastname: Sakabe
mesh_terms: D003116:Color; D004871:Erbium / Q000737:chemistry*; D007834:Lasers; D055100:Optical Fibers
chemical_list: D004871:Erbium