• DocumentCode
    806916
  • Title

    Blue, green and yellow upconversion lasing in Er:YLiF4 using 1.5 mu m pumping

  • Author

    Macfarlane, R.M. ; Whittaker, E.A. ; Lenth, W.

  • Author_Institution
    Almaden Res. Lab., IBM Res. Div., San Jose, CA, USA
  • Volume
    28
  • Issue
    23
  • fYear
    1992
  • Firstpage
    2136
  • Lastpage
    2138
  • Abstract
    The authors report blue, green and yellow upconversion laser action in Er3+:YLiF4 following pumping at 1.500 mu m below 80 K. For the blue transition the ratio of the output frequency to the input frequency is 3.3, the highest yet reported for an upconversion laser. In spite of the multiple upconversion steps, the thresholds for laser action were less than 80 mW. It is proposed that the nonlinear upconversion pumping proceeds via a sequence of several pairwise cross-relaxation steps.
  • Keywords
    erbium; optical frequency conversion; optical pumping; solid lasers; 1.5 micron; Er:YLiF 4; YLiF 4:Er; blue transition; green upconversion lasing; laser action thresholds; multiple upconversion steps; nonlinear upconversion pumping; output frequency input frequency ratio; pairwise cross-relaxation steps; yellow upconversion lasing;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19921371
  • Filename
    173000
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=806916