• Corpus ID: 118680386

Influences of pump transitions on thermal effects of multi-kilowatt thulium-doped fiber lasers

@article{Yang2015InfluencesOP,
  title={Influences of pump transitions on thermal effects of multi-kilowatt thulium-doped fiber lasers},
  author={Jianlong Yang and Yao Wang and Yulong Tang and Jian-qiu Xu},
  journal={arXiv: Optics},
  year={2015}
}
Thermal effects are critical constrains for developing high-power thulium-doped fiber lasers (TDFLs). In this paper, we numerically investigate the lasing and thermal characteristics of the TDFLs under different pump transitions. Our results show, the widely-used pump transition $^3H_6\rightarrow^3H_4$, taking advantages of high-power high-efficiency laser diodes at $\sim$0.8 $\mu$m, may not be a superior choice for directly outputting multi-kilowatt at 2 $\mu$m because of severe thermal… 
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