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Mid-infrared (3.5–5.5 μm) spectroscopic properties of Pr3+-doped Ge–Ga–Sb–Se glasses and optical fibers

Authors
Journal
Journal of Luminescence
0022-2313
Publisher
Elsevier
Publication Date
Volume
128
Issue
10
Identifiers
DOI: 10.1016/j.jlumin.2008.03.011
Keywords
  • Selenide
  • Fiber
  • Infrared
  • Glass
  • Pr3+
Disciplines
  • Physics

Abstract

Abstract Spectroscopic properties of Pr 3+-doped selenide glasses and optical fibers were investigated for their mid-infrared applications in the spectral range of 3.5–5.5 μm. Optimal concentration of Pr 3+ was decided, and sensitizers for improved spontaneous emission of Pr 3+: ( 3F 2, 3H 6), 3H 5→ 3H 4 transition were examined. Spectral deconvolution analysis with corrected emission bands revealed effective interaction of the excited energy states. Optical fibers doped with Pr 3+ were fabricated and their spectroscopic properties were measured. Pumping scheme and energy transfer mechanism of the selenide fiber were investigated and discussed for its practical use.

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