Resonantly pumped single-mode channel waveguide Er:YAG laser with nearly quantum defect limited efficiency.

@article{TerGabrielyan2013ResonantlyPS,
  title={Resonantly pumped single-mode channel waveguide Er:YAG laser with nearly quantum defect limited efficiency.},
  author={Nikolai Ter-Gabrielyan and Viktor Fromzel and Xiaodong Mu and Hubert Meissner and Mark A. Dubinskii},
  journal={Optics letters},
  year={2013},
  volume={38 14},
  pages={
          2431-3
        }
}
We demonstrated the continuous-wave operation of a resonantly pumped Er:YAG single-mode channel waveguide laser with diffraction-limited output and nearly quantum defect limited efficiency. Using a longitudinally core-pumped, nearly square (61.2 μm×61.6 μm) Er3+:YAG waveguide embedded in an undoped YAG cladding, an output power of 9.1 W with a slope efficiency of 92.8% (versus absorbed pump power) has been obtained. To the best of our knowledge, this optical-to-optical efficiency is the highest… CONTINUE READING

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