Spectral study of the stimulated emission of Nd3+ in fluorotellurite bulk glass

Opt Express. 2013 Apr 22;21(8):9298-307. doi: 10.1364/OE.21.009298.

Abstract

In this work we present, for the first time to our knowledge, laser emission under wavelength selective laser-pulsed pumping in Nd(3+)-doped TeO(2)-ZnO-ZnF(2) bulk glass for two different Nd(3+) concentrations. The fluorescence properties of Nd(3+) ions in this matrix which include, Judd-Ofelt calculation, stimulated emission cross-section of the laser transition and lifetimes are also presented. The site-selective emission and excitation spectra along the (4)I(9/2)→(4)F(3/2) absorption band show the inhomogeneous behaviour of the crystal field felt by Nd(3+) ions in this fluorotellurite glass which allows for spectral tuning of the laser output pulse as a function of the pumping wavelength. The emission cross-section obtained from the Judd-Ofelt analysis and spectral data (4.9x10(-20) cm(2)) is in fairly good agreement with the value obtained from the analysis of the laser threshold data (4x10(-20) cm(2)).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Equipment Design
  • Equipment Failure Analysis
  • Fluorine / chemistry*
  • Glass / chemistry*
  • Lasers*
  • Materials Testing
  • Neodymium / chemistry*
  • Tellurium / chemistry*

Substances

  • Fluorine
  • Neodymium
  • tellurous acid
  • Tellurium