Combined excitation-emission spectroscopy of bismuth active centers in optical fibers

Opt Express. 2011 Sep 26;19(20):19551-61. doi: 10.1364/OE.19.019551.

Abstract

For the first time, 3-dimensional luminescence spectra (luminescence intensity as a function of the excitation and emission wavelengths) have been obtained for bismuth-doped optical fibers of various compositions in a wide spectral range (450-1700 nm). The bismuth-doped fibers investigated have the following core compositions: SiO(2), GeO(2), Al-doped SiO(2), and P-doped SiO(2). The measurements are performed at room and liquid nitrogen temperatures. Based on the experimental results, the positions of the low-lying energy-levels of the IR bismuth active centers in SiO(2)- and GeO(2)-core fibers have been determined. Similarity of the energy-level schemes for the two core compositions has been revealed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bismuth / chemistry*
  • Equipment Design
  • Light*
  • Optical Fibers*
  • Scattering, Radiation*
  • Silicon Dioxide / chemistry
  • Spectrum Analysis / instrumentation*
  • Temperature

Substances

  • Silicon Dioxide
  • Bismuth