• DocumentCode
    1317012
  • Title

    High-power red laser oscillation of 311.4 mW in Pr+3-doped waterproof fluoro-aluminate glass fibre excited by GaN laser diode

  • Author

    Nakanishi, J. ; Yamada, Tomoaki ; Fujimoto, Yasutaka ; Ishii, O. ; Yamazaki, M.

  • Author_Institution
    NIDEK Co., Ltd., Gamagori, Japan
  • Volume
    46
  • Issue
    18
  • fYear
    2010
  • fDate
    9/1/2010 12:00:00 AM
  • Firstpage
    1285
  • Lastpage
    1286
  • Abstract
    A high-power red fibre laser with a Pr-doped waterproof fluoro-aluminate glass fibre (Pr:WPFGF) is reported. Even though a Pr:WPFGF is a fluoride material, it possesses low deliquescence and enough long-term stability. A blue/violet GaN laser diode at 442 nm was launched into the Pr:WPFGF (core diameter 8 m, length 40 mm), both end surfaces of which were directly coated to construct a resonator. The maximum output power was measured to be 311.4 mW at 800 mW pumping power. The oscillation wavelength was 638 nm and the slope efficiency was calculated to be 41.6 . These results showed good agreement with theoretical predictions.
  • Keywords
    III-V semiconductors; fibre lasers; gallium compounds; glass fibres; optical glass; optical pumping; praseodymium; semiconductor lasers; wide band gap semiconductors; GaN; Jk:Pr; laser diode; power 311.4 mW; power 800 mW; red fibre laser; red laser oscillation; slope efficiency; waterproof fluoro-aluminate glass fibre; wavelength 442 nm;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2010.1877
  • Filename
    5567062
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1317012