Efficient 2.7 micron emission from Er3 +/Pr3 +codoped oxyfluorotellurite glass

Gongxun Bai, Jia Ding, Lili Tao, Kefeng Li, Lili Hu, Yuen Hong Tsang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

30 Citations (Scopus)

Abstract

2.7 μm emission from the Er3 +and Er3 +/Pr3 +ions doped oxyfluorotellurite glasses was detected when pumped with a 980 nm laser diode and their results were compared. It is found that 2.7 μm emission from Er3 +is enhanced by codoped with Pr3 +in the oxyfluoride tellurite glass. The emission characteristic at 2.7 μm and energy transfer (ET) have been investigated. The fabricated glass possesses a larger calculated emission cross section (1.01 × 10- 20cm2) along with a higher spontaneous transition probability (60.92 s- 1) corresponding to the Er3 +:4I11/2→4I13/2transition. Additionally, large ET efficiency of 85% indicates the more efficient ET process from Er3 +to Pr3 +(Er3 +:4I13/2+ Pr3 +:3H4→ Er3 +:4I15/2+ Pr3 +:3F3). Therefore, codoping with Pr3 +ions can further improve the 2.7 μm emission of Er3 +via ET and the investigation of the materials in this study could help to find potential application of 2.7 μm laser.
Original languageEnglish
Pages (from-to)3403-3406
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume358
Issue number23
DOIs
Publication statusPublished - 1 Dec 2012

Keywords

  • 2.7 micron emission
  • Er
  • Oxyfluorotellurite glass
  • Rare earths

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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