5 kW Near-Diffraction-Limited and 8 kW High-Brightness Monolithic Continuous Wave Fiber Lasers Directly Pumped by Laser Diodes

@article{Fang20175KN,
  title={5 kW Near-Diffraction-Limited and 8 kW High-Brightness Monolithic Continuous Wave Fiber Lasers Directly Pumped by Laser Diodes},
  author={Qiang Fang and Jinhui Li and Wei Shi and Yuguo Qin and Yang Xu and Xiangjie Meng and Robert A. Norwood and Nasser Peyghambarian},
  journal={IEEE Photonics Journal},
  year={2017},
  volume={9},
  pages={1-7}
}
Tandem pumping technique are traditionally adopted to develop >3-kW continuous-wave (cw) Yb3+-doped fiber lasers, which are usually pumped by other fiber lasers at shorter wavelengths (1018 nm e.g.,). Fiber lasers directly pumped by laser diodes have higher wall-plug efficiency and are more compact. Here we report two high brightness monolithic cw fiber laser sources at 1080 nm. Both lasers consist of a cw fiber laser oscillator and one laser-diode pumped double cladding fiber amplifier in the… CONTINUE READING

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