Efficient, tunable, zero-line-diode-pumped, continuous-wave Yb3+:Ca4LnO(BO3)3 (Ln=Gd,Y) lasers at room temperature, application to miniature lasers

Frédéric Druon (1) , Frederika Auge-Rochereau (1) , François Balembois (1) , Patrick Georges (1) , Alain Brun (1) , Astrid Aron (2) , Frédéric Mougel (2) , Gerard Aka (2) , Daniel Vivien (2)

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

We demonstrate an efficient cw 976-nm-diode-pumped Yb31:Ca4GdO(BO3)3 laser. At room temperature we obtained 814 mW of power with a slope efficiency of 77% and a small-signal gain per round trip of 1.67. We also demonstrate that the Yb31:Ca4LnO(BO3)3 (Ln 5 Gd, Y) crystals are suitable for a plano-plano microchiptype cavity. With this microlaser we have obtained an average power of 300 mW, which corresponds to an optical-optical conversion efficiency of 27%

Domains: Optics [physics.optics]

Frédéric Druon, Frederika Auge-Rochereau, François Balembois, Patrick Georges, Alain Brun, et al.. Efficient, tunable, zero-line-diode-pumped, continuous-wave Yb3+:Ca4LnO(BO3)3 (Ln=Gd,Y) lasers at room temperature, application to miniature lasers. Journal of the Optical Society of America B, 2000, 17 (1), pp.18-22. ⟨hal-00701645⟩