Eye-safe 155  μm passively Q-switched Er,Yb:GdAl_3(BO_3)_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.

KLi2RE(BO3)2 (RE = Dy, Ho, Er, Tm, Yb, and Y): Structural, Spectroscopic, And Thermogravimetric Studies on a Series of Mixed-Alkali Rare-Earth Orthoborates

“…1 4 O f n o t e s , (Er 3+ ,Yb 3+ ):GdAl 3 (BO 3 ) 4 and (Er 3+ ,Yb 3+ ):GdMgB 5 O 10 crystals were demonstrated to produce a human eye-safe 1.5 μm laser, and their slope efficiencies lie close to that of Er− Yb:commercial glass. 15,16 YGa 3 (BO 3 ) 4 activated by Dy 3+ , Tm 3+ , 17 and Ca 4 LaO(BO 3 ) 3 18 and codoped with Dy 3+ and Eu 3+ are developed as single-phase phosphors, emitting white light under the excitation of near-UV light. 6 Li-and 10 Benriched Li 6 RE(BO 3 ) 3 (RE = Gd, Lu, Y) crystals 19,20 were shown to be promising neutron scintillators because of their high yields for thermal neutron irradiation.…”

Люминесцентные и нелинейно-оптические свойства боратов LnGa-=SUB=-3-=/SUB=-(BO-=SUB=-3-=/SUB=-)-=SUB=-4-=/SUB=- (Ln = Nd, Sm, Tb, Er, Dy, Ho)

“…Высокоэффективный непрерывный перестраиваемый лазер с диодной накачкой и с самоудвоением частоты был создан на кристаллах YАl 3 (BO 3 ) 4 : Yb (YAB : Yb) [9]. На основе кристаллов RАl 3 (BO 3 ) 4 : Er, Yb (R = Y, Lu, Gd) работают условно безопасные для глаз лазеры различных типов ( [10] и ссылки в этой работе). Концентрированные кристаллы бората NdАl 3 (BO 3 ) 4 были использованы для создания минилазеров ( [11] и ссылки в этой работе).…”

Spectroscopy of f−f transitions, crystal-field calculations, and magnetic and quadrupole helix chirality in DyFe3(BПопова1, Чукалина2, Болдырев3 et al. 2017Phys. Rev. B9000View full textAdd to dashboardCite

“…These compounds crystallize in the trigonal R32 structure of the natural mineral huntite [4]. The most known representatives of this family are aluminum borates, which are used in selffrequency doubling and self-frequency summing lasers (see, e.g., Refs [5][6][7] and references therein). Additional interest of scientists in the huntite borates is connected with an appreciable magnetoelectric effect found in the yttrium and rare-earth (RE) iron borates (see, e.g., Refs [8][9][10][11] and references therein) and in the RE aluminum and gallium borates [12][13][14][15].…”