External-cavity frequency doubling of a 5-W 756-nm injection-locked Ti:sapphire laser.

We have developed a 5-W 756-nm injection-locked Ti:sapphire laser and frequency-doubled it in an external enhancement cavity for the generation of watt-level 378-nm single-frequency radiation, which is essential for isotope-selective optical pumping of thallium atoms. With a lithium triborate (LBO) crystal in the enhancement cavity, 1.1 W at 378 nm was coupled out from the cavity. Such results are to our knowledge the highest powers of continuous-wave single-frequency radiation generated from a Ti:sapphire laser and its frequency doubling.

[1]  H. Moon,et al.  Laser-induced birefringence by using a linearly polarized field in Na D1 line and its application to laser frequency stabilization , 2003 .

[2]  D. C. Hanna,et al.  Tunable single-frequency ultraviolet generation from a continuous-wave Ti : sapphire laser with an intracavity PPLN frequency doubler , 2003 .

[3]  P. Tidemand-Lichtenberg,et al.  Tunable intra-cavity SHG of CW Ti:Sapphire lasers around 785 nm and 810 nm in BiBO-crystals. , 2006, Optics express.

[4]  L. S. Cruz,et al.  External power-enhancement cavity versus intracavity frequency doubling of Ti:sapphire lasers using BIBO. , 2007, Optics express.

[5]  Minoru Obara,et al.  Generation of 5-W deep-UV continuous-wave radiation at 266 nm by an external cavity with a CsLiB6O10 crystal. , 2004, Optics letters.

[6]  Majumder,et al.  Precise Test of Electroweak Theory from a New Measurement of Parity Nonconservation in Atomic Thallium. , 1995, Physical review letters.

[7]  K. Midorikawa,et al.  Efficient frequency doubling of 1-W continuous-wave Ti:sapphire laser with a robust high-finesse external cavity. , 2003, Applied optics.

[8]  G. Lim,et al.  Development of a 756 nm, 3 W injection-locked cw Ti:sapphire laser. , 2005, Applied optics.

[9]  Second-harmonic generation of light at 544 and 272 nm from an ytterbium-doped distributed-feedback fiber laser. , 2007, Optics letters.

[10]  Jan Hald,et al.  Generation of UV light by frequency doubling in BIBO , 2004 .

[11]  John L. Hall,et al.  Laser phase and frequency stabilization using an optical resonator , 1983 .

[12]  Theo Rasing,et al.  Performance optimization of an external enhancement resonator for optical second-harmonic generation , 2002 .

[13]  A. Chiummo,et al.  High-efficiency blue-light generation with a ring cavity with periodically poled KTP , 2007 .