42-fs diode-pumped Yb:Ca4YO(BO3)3 oscillator
A. Yoshida1,2, A. Schmidt1, H. Zhang3, J. Wang3, J. Liu4, C. Fiebig5, K. Paschke5, G. Erbert5, V. Petrov1 and U. Griebner1
Published in:
Opt. Express, vol. 18, no. 23, pp. 24325-24330 (2010).
Abstract:
We demonstrate a passively mode-locked femtosecond laser based on the self-frequency-doubling crystal Yb:Ca4YO(BO3)3. The oscillator is pumped by a novel two-section distributed Bragg-reflector tapered diode-laser. Pulses as short as 46 fs and 42 fs at 1050 nm are achieved for the E//Z polarization without and with external compression, respectively. These are, to the best of our knowledge, the shortest pulses obtained from an oscillator based on Yb3+-doped bulk material.
1 Max Born Institute, Max-Born-Str. 2a, D-12489 Berlin, Germany
2 Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
3 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
4 College of Physics, Qingdao University, Ning-Xia Road 308, Qingdao 266071, China
5 Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Strasse 4, 12489 Berlin, Germany
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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