Passively mode-locked Yb:KLu(WO4)2 oscillators
U. Griebner1, S. Rivier1, V. Petrov1, M. Zorn2, G. Erbert2, M. Weyers2, X. Mateos3, M. Aguiló3, J. Massons3, F. Díaz3
Published in:
Opt. Express, vol. 13, no. 9, pp. 3465-3470 (2005).
Abstract:
We demonstrate passive mode locking based on the novel monoclinic double tungstate crystal Yb:KLu(WO4)2. We report the shortest pulses ever produced with an Yb-doped tungstate laser using a semiconductor saturable absorber. A pulse duration of 81 fs has been achieved for an average power of 70 mW at 1046 nm. We compare the performance of the polarization oriented parallel to the Nm- and Np-crystallo-optic axes. Results in the femtosecond and picosecond regime are presented applying either Ti:sapphire or diode laser pumping. The great potential of Yb:KLu(WO4)2 as an active medium for ultrashort pulses is demonstrated for the first time, to our knowledge.
1 Max-Born-Institut, Max-Born-Straße 2a, D-12489 Berlin, Germany
2 Ferdinand-Braun-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, D-12489 Berlin, Germany
3 Dept. Química Física i Inorgànica, Física i Cristal·lografia de Materials (FiCMA), Universitat Rovira i Virgili, Marcel·lí Domingo, E-43007 Tarragona, Catalunya, Spain
OCIS codes:
(140.3580) Lasers, solid-state; (140.4050) Mode-locked lasers; (140.5680) Rare earth and transition metal solid-state lasers; (160.5690) Rare earth doped materials
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