Fiber Lasers V: Technology, Systems, and Applications

Kim P. Hansen, Christina Bjarnal Thulin Olausson, Jes Broeng, Kent Mattsson, Thomas Nikolajsen, Martin D. Nielsen, Peter M.W. Skovgaard, Mads Hoy Sørensen, Mark Denninger, Christian Jakobsen, Harald R. Simonsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


High-power fiber lasers and amplifiers have gained tremendous momentum in the last five years, and many of the traditional manufactures of gas and solid-state lasers are pursuing the attractive fiber-based systems, which are now displacing the old technology in many areas. High-power fiber laser systems require specially designed fibers with large cores 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 70 μm single-mode polarization-maintaining rod-type fiber capable of amplifying to MW 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. Finally, we briefly touch upon the subject of photo darkening and its origin.
Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Number of pages473
Place of PublicationSan Jose, California
PublisherSPIE - International Society for Optical Engineering
Publication date2008
Publication statusPublished - 2008
EventSPIE Lasers and Applications in Science and Engineering 2008 - San Diego, United States
Duration: 19 Jan 200824 Jan 2008
Conference number: 6873


ConferenceSPIE Lasers and Applications in Science and Engineering 2008
Country/TerritoryUnited States
CitySan Diego


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