High-efficiency, high-power and low threshold Yb3+:YAG ceramic laser.

We present a high-power, high-efficiency and low threshold laser prototype based on doped ceramic Yb(3+):YAG. We achieved an output power of 9 W with a slope efficiency of 73% and a threshold of 1 W at 1030 nm in quasi-Continuous Wave (QCW). Moreover, we obtained an output power 7.7 W with a slope efficiency of 60% in Continuous Wave (CW). Finally, a characterization of a low losses tunable cavity for several laser wavelengths with an output power exceeding 5 W is reported.

[1]  S. Wada,et al.  Broadly Tunable Yb3+-Doped Y3Al5O12 Ceramic Laser at Room Temperature , 2009 .

[2]  U. Keller,et al.  Spectroscopy and femtosecond laser performance of Yb3+:Gd0.64Y0.36VO4 crystal , 2006 .

[3]  Hideki Yagi,et al.  Microhardness and fracture toughness of Y2O3-and Y3Al5O12-based nanocrystalline laser ceramics , 2005 .

[4]  Ken-ichi Ueda,et al.  Yb3+-doped Y3Al5O12 ceramics – A new solid-state laser material , 2003 .

[5]  P. Georges,et al.  Thermal lensing in diode-pumped ytterbium Lasers-Part I: theoretical analysis and wavefront measurements , 2004, IEEE Journal of Quantum Electronics.

[6]  Ken-ichi Ueda,et al.  9.2‐W diode–end–pumped Yb:Y2O3 ceramic laser , 2005 .

[7]  G. Erbert,et al.  Passively mode-locked Yb:KLu(WO4)2 oscillators. , 2005, Optics express.

[8]  L Bonelli,et al.  Diode-pumped passively mode-locked Yb:YLF laser. , 2008, Optics express.

[9]  Takunori Taira,et al.  High-power operation of diode edge-pumped, composite all-ceramic Yb:Y3Al5O12 microchip laser , 2007 .

[10]  H. Yagi,et al.  Diode-pumped 65 fs Kerr-lens mode-locked Yb(3+):Lu(2)O(3) and nondoped Y(2)O(3) combined ceramic laser. , 2008, Optics letters.

[11]  Y. Liu,et al.  Passively Q-Switched Yb:YAG Laser with Cr(4+):YAG as the Saturable Absorber. , 2001, Applied optics.

[12]  J. Robertson,et al.  HfO2のFermiレベルピン止めとHf‐Si結合:多結晶シリコンゲート電極界面 , 2005 .

[13]  M. Tonelli,et al.  High efficiency room temperature laser emission in heavily doped Yb:YLF. , 2007, Optics express.

[14]  S. Wada,et al.  Diode-pumped mode-locked Yb:YAG ceramic laser. , 2009, Optics express.

[15]  Hideki Yagi,et al.  Composite Yb:YAG/Cr(4+):YAG ceramics picosecond microchip lasers. , 2007, Optics express.

[16]  C. Hönninger,et al.  Ultrafast ytterbium-doped bulk lasers and laser amplifiers , 1999 .

[17]  F. Balembois,et al.  High-power diode-pumped Yb3+:CaF2 femtosecond laser. , 2004, Optics letters.

[18]  U. Keller,et al.  A passively Q-switched Yb:YAG microchip laser , 2001 .

[19]  Satoshi Wada,et al.  Efficient tunable Yb:YAG ceramic laser , 2008 .

[20]  D. Tang,et al.  High-efficiency 1040 and 1078 nm laser emission of a Yb:Y2O3 ceramic laser with 976 nm diode pumping. , 2007, Optics letters.