• DocumentCode
    272514
  • Title

    Yb-doped rod-type fiber amplifier with 2 kW average power

  • Author

    Otto, Hans-Jürgen ; Jauregui, Cesar ; Stutzki, Fabian ; Modsching, Norbert ; Limpert, Jens ; Tünnermann, Andreas

  • Author_Institution
    Inst. of Appl. Phys., Friedrich-Schiller-Univ. Jena, Jena, Germany
  • fYear
    2014
  • fDate
    8-13 June 2014
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    The effect of mode instabilities has become a strong limitation for the average power scaling of fiber lasers and amplifiers with nearly diffraction-limited beam quality. In this contribution it is shown that the output average power of rod-type fiber amplifiers can be efficiently increased well beyond the threshold of mode-instabilities. This way a new average output power record of 2 kW, with an M2 of 3, emitted from a 1 meter long rod-type fiber amplifier has been achieved.
  • Keywords
    Q-factor; laser beams; laser modes; laser stability; optical fibre amplifiers; ytterbium; M2; average power scaling; beam quality factor; fiber lasers; mode instabilities; nearly diffraction-limited beam quality; output average power; rod-type fiber amplifier; size 1 m; Fiber lasers; Laser beams; Laser modes; Optical fiber amplifiers; Power amplifiers; Power generation; Power lasers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers and Electro-Optics (CLEO), 2014 Conference on
  • Conference_Location
    San Jose, CA
  • Type

    conf

  • Filename
    6990146
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=272514