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  • Chinese Optics Letters
  • Vol. 22,
  • Issue 1,
  • pp. 011403-
  • (2024)

14.1 W continuous-wave dual-end diode-pumped Er:Lu2O3 laser at 2.85 µm

Yangyang Liang, Tao Li, Baitao Zhang, Jingliang He, Sascha Kalusniak, Xian Zhao, and Christian Kränkel

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Abstract

We present our efforts towards power scaling of Er:Lu2O3 lasers at 2.85 µm. By applying a dual-end diode-pumped resonator scheme, we achieve an output power of 14.1 W at an absorbed pump power of 59.7 W with a slope efficiency of 26%. In a single-end pumped resonator scheme, an output power of 10.1 W is reached under 41.9 W of absorbed pump power. To the best of our knowledge, this is the first single crystalline mid-infrared rare-earth-based solid-state laser with an output power exceeding 10 W at room temperature.

© 2024 Chinese Laser Press

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