8.08 W holmium doped fluorotellurite fiber laser at 2067 nm

Z. P. Zhao, C. F. Yao, Z. R. Li, Z. X. Jia, G. S. Qin, Y. Ohishi, W. P. Qin

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We reported a multi-watt ∼2.1 µm laser output from a 30 cm long Ho3+-doped fluorotellurite microstructured fiber (FTMF) pumped by a homemade 1980 nm Tm3+-doped silica fiber laser. When the pump power was increased to 61.8 mW, lasing at 2067 nm was achieved from the Ho3+-doped FTMT, and an unsaturated maximum output power of ∼8.08 W was obtained for a pump power of ∼10.56 W. The corresponding slope efficiency was about 77.21%. During our experiments, no obvious damage was observed on the end face of the Ho3+-doped FTMF. Our results indicated that Ho3+-doped fluorotellurite fibers had the potential for constructing high power fiber lasers at 2.1 µm.

Original languageEnglish
Article number115101
JournalLaser Physics Letters
Volume16
Issue number11
DOIs
StatePublished - 2 Oct 2019
Externally publishedYes

Keywords

  • 2067 nm lasing
  • Ho
  • fluorotellurite fiber
  • glass fibers
  • high power

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