title: Eye-safe 1.55  μm passively Q-switched Er,Yb:GdAl3(BO3)4 diode-pumped laser.
abstract: We report for the first time, to the best of our knowledge, on a diode-pumped passively Q-switched Er,Yb:GdAl3(BO3)4 laser. By using a Co2+:MgAl2O4 crystal as a saturable absorber, Q-switched laser pulses with a duration of 12 ns and a maximum energy of 18.7 μJ at a repetition rate of 32 kHz corresponding to an average output power of 0.6 W were obtained at 1550 nm under continuous-wave pumping. In the burst mode of operation, Q-switched laser pulses with the highest energy up to 44 μJ were realized with a pulse repetition rate of 6.5 kHz.
authors.forename: K N
authors.initials: KN
authors.lastname: Gorbachenya
authors.forename: V E
authors.initials: VE
authors.lastname: Kisel
authors.forename: A S
authors.initials: AS
authors.lastname: Yasukevich
authors.forename: V V
authors.initials: VV
authors.lastname: Maltsev
authors.forename: N I
authors.initials: NI
authors.lastname: Leonyuk
authors.forename: N V
authors.initials: NV
authors.lastname: Kuleshov
mesh_terms: D001881:Borates; D004867:Equipment Design; D005123:Eye; D005682:Gadolinium; D054023:Lasers, Semiconductor; D053844:Lasers, Solid-State; D012449:Safety
chemical_list: D001881:Borates; C540417:gadolinium trialuminum borate; D005682:Gadolinium