Er3+ doped Na2O-Nb2O5-TeO2 glasses for optical waveguide laser and amplifier

Hai Lin, Shibin Jiang, Jianfeng Wu, Feng Song, Nasser Peyghambarian, E. Y.B. Pun

Research output: Contribution to journalArticle

93 Scopus citations

Abstract

Er3+ doped Na2O-Nb2O5-TeO2 (NNT) glasses suitable for making optical waveguide devices has been fabricated and characterized. Intense 1.53 μm infrared fluorescence and green upconversion luminescence were observed under 975 nm diode laser and 798 nm laser excitation. The optical absorption, the Judd-Ofelt parameters and the spontaneous transition probabilities have been measured and calculated. The quantum efficiency of 1.53 μm emission band is proved to be ∼100%. The maximum emission cross-section is 1.02 × 10-20 cm2 at 1.533 μm, and it is more than 30% higher than the values in silicate and phosphate glasses. Under 798 nm excitation, strong green and weak red upconversion luminescence was observed at room temperature. The 546 nm green band shows a broad full-width at half-maximum of 16 nm. Intense and broad green upconversion fluorescence in Er3+ doped NNT glass can be used in colour display, undersea communication and infrared sensor. High concentration of Na2O is a benefit to developing waveguide device from the glass.

Original languageEnglish (US)
Pages (from-to)812-817
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume36
Issue number7
DOIs
StatePublished - Apr 7 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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