Efficient amplification using the 4F3/24I9/2 transition in Nd-doped silica fiber

Peter D. Dragic, George C. Papen

Research output: Contribution to journalArticlepeer-review


Amplification characteristics of the three-level 4F3/24I9/2 transition in Nd-doped silica glass fiber are investigated under strong signal saturation and high pump power (150 mW). Aluminum codoped Nd-silica fibers exhibit strong superfluorescent behavior in the four-level 43/24I11/2 transition which limits the optical conversion efficiency into the three-level transition. Ge-doped silica fibers do not exhibit this limitation and can efficiently amplify in the three-level transition with current laser-diode pump technology.

Original languageEnglish (US)
Pages (from-to)1593-1595
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number12
StatePublished - Dec 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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