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<p>We report for the first time, to the best of our knowledge, a diode-pumped tunable continuous-wave (CW) Nd<sup>3+</sup>:Gd<sub>3</sub>Sc<sub>2</sub>Al<sub>3</sub>O<sub>12</sub> (Nd:GSAG) laser on the <sup>4</sup>F<sub>3/2</sub> → <sup>4</sup>I<sub>13/2</sub> transition. Three tunable single-wavelength lasers operating at 1312&#xa0;nm, 1336&#xa0;nm and 1360&#xa0;nm were realized by rotating an intracavity birefringent filter (BRF). At an incident pump power of 20 W, the maximum output power of 9.5&#xa0;W was obtained at 1336&#xa0;nm, with a slope efficiency of 50.9% and an optical conversion efficiency of 47.5%. Additionally, two pairs of tunable dual-wavelength lasers operating at 1312/1336&#xa0;nm and 1336/1360&#xa0;nm were also achieved. The maximum total output power for the 1312/1336&#xa0;nm pair was 4.5&#xa0;W. The corresponding total optical conversion efficiency was more than 22.5%.</p>

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Diode-pumped tunable single- and dual-wavelength Nd3+:Gd3Sc2Al3O12 lasers on 4F3/2 → 4I13/2 transition

  • 期刊论文

  • 发表日期：

    2025年10月23日

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  • Z. Du,
  • X. Fu,
  • B. Li,
  • C. Chu,
  • X. Yang

摘要

We report for the first time, to the best of our knowledge, a diode-pumped tunable continuous-wave (CW) Nd3+:Gd3Sc2Al3O12 (Nd:GSAG) laser on the 4F3/2 → 4I13/2 transition. Three tunable single-wavelength lasers operating at 1312 nm, 1336 nm and 1360 nm were realized by rotating an intracavity birefringent filter (BRF). At an incident pump power of 20 W, the maximum output power of 9.5 W was obtained at 1336 nm, with a slope efficiency of 50.9% and an optical conversion efficiency of 47.5%. Additionally, two pairs of tunable dual-wavelength lasers operating at 1312/1336 nm and 1336/1360 nm were also achieved. The maximum total output power for the 1312/1336 nm pair was 4.5 W. The corresponding total optical conversion efficiency was more than 22.5%.