New-green self-frequency doubling diode-pumped Nd:Ca4GdO (BO3)3 laser

Frédéric Mougel (1, 2) , Frédérica Augé (3) , Gerard Aka (1) , Andrée Kahn-Harari (1) , Daniel Vivien (1) , François Balembois (3) , Patrick Georges (3) , Alain Brun (3)

1 LCAES - Laboratoire de Chimie Appliquée de l'État Solide
2 Crismatec
3 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa

Results on green laser performances are reported for a new efficient self-frequency-doubling (SFD) oxoborate crystal: Nd3+:Ca4GdO(BO3)3 (Nd:GdCOB). 21 mW of green cw laser emission for an absorbed pump power of 820 mW were achieved under laser diode-pumping. 64 mW of green cw laser output were obtained with 1 W of absorbed pump power under titanium-sapphire pumping. Its availability in large-size crystals with good optical quality makes Nd:GdCOB a true challenger to the best SFD laser crystal reported so far: Nd:YAl3(BO3)4 (Nd:YAB or NYAB).

Domains: Physics [physics]; Physics [physics]; Optics [physics.optics]

Frédéric Mougel, Frédérica Augé, Gerard Aka, Andrée Kahn-Harari, Daniel Vivien, et al.. New-green self-frequency doubling diode-pumped Nd:Ca4GdO (BO3)3 laser. Applied Physics B - Laser and Optics, 1998, 67 (5), pp.533-535. ⟨10.1007/s003400050540⟩. ⟨hal-00761559⟩