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摘要
A high-pulse-energy high-beam-quality tunable Ti:sapphire laser pumped by a frequency-doubled Nd:YAG laser is demonstrated. Using a fused-silica prism as the dispersion element, a tuning range of 740-855nm is obtained. At an incident pump energy of 774 mJ, the maximum output energy of 104mJ at 790nm with a pulse width of 100 mu s is achieved at a repetition rate of 5 Hz. To the best of our knowledge, it is the highest pulse energy at 790nm with pulse width of hundred micro-seconds for an all-solid-state laser. The linewidth of output is 0.5 nm, and the beam quality factor M-2 is 1.16. The high-pulse-energy high-beam-quality tunable Ti: sapphire laser in the range of 740-855nm can be used to establish a more accurate and consistent absolute scale of second-order optical-nonlinear coefficients for KBe2BO3F2 measured in a wider wavelength range and to assess Miller's rule quantitatively.
- 出版日期2017-3
- 单位中国科学院理化技术研究所; 中国科学院大学; 哈尔滨工业大学
