Airclad fiber laser technology

Kim P. Hansen, Christina Bjarnal Thulin Olausson, Jes Broeng, Danny Noordegraaf, Martin D. Maack, Thomas Tanggaard Alkeskjold, Marko Laurila, Thomas Nikolajsen, Peter M. W. Skovgaard, Mads Hoy Sørensen, Mark Denninger, Christian Jakobsen, Harald R. Simonsen

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    High-power fiber lasers and amplifiers have gained tremendous momentum in the last 5 years. Many of the traditional manufacturers of gas and solid-state lasers are now pursuing the fiber-based systems, which are displacing the conventional technology in many areas. High-power fiber laser systems require reliable fibers with large cores, stable mode quality, and good power handling capabilities-requirements that are all met by the airclad fiber technology. In the present paper we go through many of the building blocks needed to build high-power systems and we show an example of a complete airclad laser system. We present the latest advancements within airclad fiber technology including a new 100 m single-mode polarization-maintaining rod-type fiber capable of amplifying to megawatt power levels. Furthermore, we describe the novel airclad-based pump combiners and their use in a completely monolithic 350 W cw fiber laser system with an M2 of less than 1.1. © 2011 Society of Photo-Optical Instrumentation Engineers (SPIE).
    Original languageEnglish
    JournalOptical Engineering
    Issue number11
    Pages (from-to)111609
    Number of pages10
    Publication statusPublished - 2011

    Bibliographical note

    Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


    • High-power fiber lasers
    • Airclad fibers
    • Photonic crystal fibers


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