• DocumentCode
    1227534
  • Title

    Photon avalanche upconversion in Er3+:YAlO3

  • Author

    Scheps, Richard

  • Author_Institution
    RDT&E Div., Naval Command Control & Ocean Surveillance Centre, San Diego, CA, USA
  • Volume
    31
  • Issue
    2
  • fYear
    1995
  • fDate
    2/1/1995 12:00:00 AM
  • Firstpage
    309
  • Lastpage
    316
  • Abstract
    The results of an investigation of photon avalanche upconversion pumping in Er3+:TiAlO3 are reported. Five pump wavelengths corresponding to transitions from the metastable 4I13/2 state to the 2H11/2 state generated upconversion laser emission at 549.8 nm. The dependence of the laser output power on pump power near laser threshold is discussed in terms of a four-level kinetics model and is shown to reflect the threshold power requirement for photon avalanche. The maximum output power at 7 K was 33 mW, giving an optical conversion efficiency of 3.5% and a conversion efficiency of 28% based on absorbed power. Pumping Er:YALO by cross relaxation energy transfer produced 166 mW of laser output with an optical conversion efficiency of 17%
  • Keywords
    erbium; laser transitions; optical frequency conversion; optical pumping; solid lasers; 166 mW; 17 percent; 28 percent; 3.5 percent; 33 mW; 549.8 nm; 7 K; Er:YALO; Er3+:YAlO3; YAlO3:Er; cross relaxation energy transfer; four-level kinetics model; metastable state; optical conversion efficiency; output power; photon avalanche upconversion pumping; threshold power; transitions; upconversion laser emission; visible laser; Erbium; Kinetic theory; Laser excitation; Laser modes; Laser transitions; Metastasis; Optical pumping; Power generation; Power lasers; Pump lasers;
  • fLanguage
    English
  • Journal_Title
    Quantum Electronics, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9197
  • Type

    jour

  • DOI
    10.1109/3.348060
  • Filename
    348060
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1227534