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Efficient ∼4 µm emission from Pr/Yb co-doped fluoroindate glass

Optics Letters, ISSN: 1539-4794, Vol: 46, Issue: 22, Page: 5607-5610
2021
  • 18
    Citations
  • 0
    Usage
  • 5
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    18
    • Citation Indexes
      18
  • Captures
    5

Article Description

Pr/Yb co-doped fluoroindate (InF) glasses were prepared by using a traditional melt-quenching method in dry N atmosphere. Pumped by a 976 or 1570 nm laser diode, efficient emissions at ∼4 µm were obtained from the Pr/Yb co-doped glasses, which could be ascribed to the transition F → H of Pr ions. The relative stimulated emission cross section was calculated to be ∼1.44 × 10 m at 4 µm, which was ∼4.2 times larger than that of transition Ho: I → I (3.4 × 10 m). In addition, combined with transitions G → F and G → F of Pr ions, ultra-broadband emission ranging from 2.7 to 4.2 µm was also obtained. Our results indicate that Pr/Yb: InF glasses could be used to develop efficient ∼4 µm lasers and widely tunable mid-infrared lasers.

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