All-solid-state continuous-wave frequency-doubled Nd:YAG-BiBO laser with 2.8-W output power at 473 nm.

We report on a diode-pumped Nd:YAG laser with 4.6 W of linear polarized continuous-wave (cw) output power on the 4F3/2 --> 4I9/2 transitions at 946 nm. Three different crystals, cut for critical type I phase matching at room temperature, are used for the intracavity frequency doubling of the laser: 10-mm-long LiBaO5 (LBO), an 8-mm-long beta-BaB2O4 (BBO), and a 10.4-mm-long BiB3O6 (BiBO) grown by FEE GmbH. Up to 2.8 W of cw output power in the blue spectral range at 473 nm has been achieved with the BiBO crystal (2.1 W with BBO and 1.5 W with LBO).

[1]  V. Magni,et al.  Multielement stable resonators containing a variable lens , 1987 .

[2]  R. A. Fields,et al.  Thermal modeling of continuous‐wave end‐pumped solid‐state lasers , 1990 .

[3]  W. P. Risk,et al.  Modeling of longitudinally pumped solid-state lasers exhibiting reabsorption losses , 1988 .

[4]  Ladislav Bohatý,et al.  Exceptional large nonlinear optical coefficients in the monoclinic bismuth borate BiB3O6 (BIBO) , 1998 .

[5]  D. Hanna,et al.  Simple method for reducing the depolarization loss resulting from thermally induced birefringence in solid-state lasers. , 1999, Optics letters.

[6]  G. Boyd,et al.  Parametric Interaction of Focused Gaussian Light Beams , 1968 .

[7]  Thomas M. Baer,et al.  Large-amplitude fluctuations due to longitudinal mode coupling in diode-pumped intracavity-doubled Nd:YAG lasers , 1986 .

[8]  Ladislav Bohatý,et al.  Linear optical properties of the monoclinic bismuth borate BiB3O6 , 2000 .

[9]  R L Byer,et al.  Continuous-wave operation of a room-temperature, diode-laser-pumped, 946-nm Nd:YAG laser. , 1987, Optics letters.

[10]  Markus A. Schmidt,et al.  Continuous wave diode pumped intracavity doubled Nd:GdVO4 laser with 840 mW output power at 456 nm , 2002 .

[11]  P. Becker,et al.  Top-seeded growth of bismuth triborate, BiB3O6 , 1999 .

[12]  B. Neuenschwander,et al.  Cooling schemes for longitudinally diode laser-pumped Nd:YAG rods , 1998 .

[13]  Heinz P. Weber,et al.  Reducing thermal lensing in diode-pumped laser rods , 2000 .