Spectroscopy of Dy3+ in Ge–Ga–S glass and its suitability for 1.3-μm fiber-optical amplifier applications

K. Wei, D. P. Machewirth, J. Wenzel, E. Snitzer, G. H. Sigel

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Abstract

Absorption and emission spectra, along with lifetime measurements, of Dy3+ in Ge–Ga–S glasses are reported. Fluorescence is observed at 1.3, 1.8, and 2.9 μm. A Judd–Ofelt analysis is performed to determine branching ratios and quantum efficiencies. The hypersensitive transition 6F11/26F15/2 at 1.3 μm has a quantum efficiency of 17%. Its suitability for an optical amplifier at 1.3 μm depends on the excited-state absorption from the 6F11/2 and 6H13/2 states, which has not yet been measured.

Original languageEnglish (US)
Pages (from-to)904-906
Number of pages3
JournalOptics Letters
Volume19
Issue number12
DOIs
StatePublished - Jun 1994

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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