Approximate analytical expressions for signal amplification in strongly pumped fibre amplifiers

R. Oron, A. Hardy

Research output: Contribution to journalArticlepeer-review

Abstract

Strongly pumped fibre amplifiers (e.g. Er3+ and Nd33+ doped fibres) have been analysed previously, yielding approximate but quite accurate analytical expressions for the pump and signal powers. These expressions are inefficient, however, for forward pumping, when the parameter q approaches unity (typical for single clad fibres). An alternative form of the expressions is presented, which is also useful in that region. Furthermore, the analysis is extended to include systems such as Yb3+ doped fibres, for which the pumping efficiency is reduced due to stimulated emission at the pump wavelength of λp.

Original languageEnglish
Pages (from-to)138-140
Number of pages3
JournalIEE Proceedings: Optoelectronics
Volume145
Issue number2
DOIs
StatePublished - 1998

Keywords

  • Fibre amplifiers
  • Pump efficiency
  • Pump wavelength
  • Signal amplification

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