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Spectroscopy of the rare-earth-ion transitions in fluoride glasses

Stuart Jackson, Shigeki Tokita, Matthew R. Majewski, Ori Henderson-Sapir, David J. Ottaway, Réal Vallée, Martin Bernier, Frédéric Maes

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

The importance of spectroscopy to the development of rare-earth-doped fiber systems cannot be overstated. Parameters such as the energy level lifetimes, absorption and emission cross sections, and the energy transfer parameters in more concentrated systems determine the viability of any laser transition. The parameters form the input-to-numerical models that are developed to optimize and understand the performance of the mid-infrared light source. In this chapter, the essential spectroscopic parameters are presented, discussed, and compared. This chapter is concerned with laser transitions that emit light with wavelengths shorter than 4 µm and the host for the rare-earth ions is confined to fluoride glass, the glass host that has underpinned the development of light sources in the mid-infrared.

Original languageEnglish
Title of host publicationMid-infrared fibre photonics
Subtitle of host publicationglass materials, fibre fabrication and processing, laser sources and devices
EditorsStuart Jackson, Maria Pawliszewska, Réal Vallée
Place of PublicationDuxford, UK ; Cambridge, US ; Kidlington, UK
PublisherWoodhead Publishing
Chapter7
Pages333-399
Number of pages67
ISBN (Electronic)9780128180181
ISBN (Print)9780128180174
DOIs
Publication statusPublished - 2022

Keywords

  • Absorption cross section
  • Emission center wavelengths
  • Emission cross section
  • Energy level
  • ETU
  • Exited-state absorption
  • Fluorescence
  • Full-width at half-maximum
  • Lifetime
  • Macroscopic rate parameters
  • Spectroscopy
  • Stimulated emission

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