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<p>A continuous-wave (CW) orthogonally polarized dual-wavelength Sm<sup>3+</sup>:LiYF<sub>4</sub> (Sm: YLF) red laser on the <sup>4</sup>G<sub>5/2</sub>→ <sup>6</sup>H<sub>9/2</sub> transition was demonstrated for the first time. Under pumping with a frequency-doubled optically pumped semiconductor laser (2ω-OPSL) emitting 10&#xa0;W at 479&#xa0;nm, a dual-wavelength red laser at 643&#xa0;nm in σ-polarization and 648&#xa0;nm in π-polarization was obtained with the total output power of 370 mW. The corresponding total optical-to-optical efficiency with respect to the absorbed pump power was 4.5%. Orthogonally polarized dual-wavelength laser play an important role in precision measurement, imaging and other applications. This work provides potential applications for dual-wavelength lasers in visible light.</p>

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Orthogonally Polarized Dual-Wavelength Sm: YLF Red Laser At 643 nm And 648 nm

  • 期刊论文

  • 发表日期：

    2025年3月26日

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  • Chu Chu,
  • Xinghua Yang,
  • Shuang Wang,
  • Baozeng Li,
  • Changli Li

摘要

A continuous-wave (CW) orthogonally polarized dual-wavelength Sm3+:LiYF4 (Sm: YLF) red laser on the 4G5/2→ 6H9/2 transition was demonstrated for the first time. Under pumping with a frequency-doubled optically pumped semiconductor laser (2ω-OPSL) emitting 10 W at 479 nm, a dual-wavelength red laser at 643 nm in σ-polarization and 648 nm in π-polarization was obtained with the total output power of 370 mW. The corresponding total optical-to-optical efficiency with respect to the absorbed pump power was 4.5%. Orthogonally polarized dual-wavelength laser play an important role in precision measurement, imaging and other applications. This work provides potential applications for dual-wavelength lasers in visible light.