Multiwavelength diode-cladding-pumped Nd3+-doped germano-aluminosilicate fiber laser

Stuart D. Jackson*, Yahua Li

*Corresponding author for this work

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Simultaneous multiwavelength oscillation at 1060 and 1090 nm has been produced from a free-running Nd3+-doped multicomponent silica fiber laser. As a result of co-doping with both Al2O3 and GeO2, the Nd3+ ions are situated at separate sites relating to either Al3+-rich or Ge4+-rich regions of the germano-aluminosilicate glass. The slope efficiency of the combined ∼1-μm output was ∼52% (56%) with respect to the launched (absorbed) pump power. The 1060-nm emission reaches threshold first because of the greater number of Nd3+ ions that are located at Al3+-rich sites. On chopping the pump light the relaxation oscillations relating to the 1090-nm emission are antiphase with the oscillations observed with the 1060-nm emission. A degree of spectral overlap exists between the fluorescence emitted from Nd3+ ions located at each site. Power equalization (to ∼1 W each) of the 1060- and 1090-nm emissions was carried out by way of Raman amplification that occurred either internally or externally to the Nd3+-doped silica fiber laser.

Original languageEnglish
Pages (from-to)1118-1122
Number of pages5
JournalIEEE Journal of Quantum Electronics
Volume39
Issue number9
DOIs
Publication statusPublished - Sep 2003
Externally publishedYes

    Fingerprint

Keywords

  • Laser measurements
  • Lasers
  • Neodymium:solid lasers
  • Optical fiber lasers
  • Optical modulation

Cite this