We report on an efficient use of CsLiB<sub>6</sub>O<sub>10</sub> (CLBO) crystals employed for an all-solid-state deep-UV laser system operated at 5 kHz. We obtained greater than 3 W of UV radiation around 242 nm by mixing the 349-nm third harmonic of a Nd:YLF laser with the tunable output from a Ti:sapphire laser in a CLBO crystal. This UV radiation was subsequently mixed with the residual 1047-nm output from the Nd:YLF laser in a second CLBO crystal. The system produced 1.5 W of deep-UV radiation at 196.3 nm, which is, to our knowledge, the highest deep-UV power below 200 nm generated in a nonlinear optical crystal. Additionally, the bandwidth of both outputs was estimated to be less than 200 MHz.
© 2000 Optical Society of America
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials
Jun Sakuma, Kyoich Deki, Andrew Finch, Yasu Ohsako, and Toshio Yokota, "All-Solid-State, High-Power, Deep-UV Laser System Based on Cascaded Sum-Frequency Mixing in CsLiB6O10 Crystals," Appl. Opt. 39, 5505-5511 (2000)