Scholarlink

<p>We report for the first time​ a pure-three-level Nd: LiYF<sub>4</sub> (Nd: LLF) laser at 862&#xa0;nm on the <sup>4</sup>F<sub>3/2</sub>→<sup>4</sup>I<sub>9/2</sub> transition. By employing a 792&#xa0;nm diode laser for pumping, a continuous-wave (CW) pure-three-level lasing at 862&#xa0;nm was experimentally achieved. At an absorbed pump power of 18.2&#xa0;W, a maximum output power of 3.86&#xa0;W at 862&#xa0;nm in π-polarization was obtained. The slope efficiency and the optical-to-optical efficiency with respect to the absorbed pump power are 25.7% and 21.2%, respectively. Moreover, a frequency-doubling CW blue laser was also realized with a maximum output power of 820 mW at 431&#xa0;nm. The wavelength of 862&#xa0;nm has excellent biological tissue penetration and specific material absorption characteristics, and has irreplaceable value in the fields of precision therapy, metal micro-processing, advanced sensing and cutting-edge scientific research.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Diode-pumped pure-three-level Nd: LiLuF4 laser at 862 nm on the 4F3/2→4I9/2 transition

  • 期刊论文

  • 发表日期：

    2025年7月30日

查看全文
  • Chu Chu,
  • Xinghua Yang,
  • Zhenhua Du,
  • Xinhua Fu

摘要

We report for the first time​ a pure-three-level Nd: LiYF4 (Nd: LLF) laser at 862 nm on the 4F3/2→4I9/2 transition. By employing a 792 nm diode laser for pumping, a continuous-wave (CW) pure-three-level lasing at 862 nm was experimentally achieved. At an absorbed pump power of 18.2 W, a maximum output power of 3.86 W at 862 nm in π-polarization was obtained. The slope efficiency and the optical-to-optical efficiency with respect to the absorbed pump power are 25.7% and 21.2%, respectively. Moreover, a frequency-doubling CW blue laser was also realized with a maximum output power of 820 mW at 431 nm. The wavelength of 862 nm has excellent biological tissue penetration and specific material absorption characteristics, and has irreplaceable value in the fields of precision therapy, metal micro-processing, advanced sensing and cutting-edge scientific research.