Airclad fiber laser technology

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

doi:10.1117/12.779582

7 February 2008 Airclad fiber laser technology

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

Author Affiliations +

Proceedings Volume 6873, Fiber Lasers V: Technology, Systems, and Applications; 687307 (2008) https://doi.org/10.1117/12.779582
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

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.

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Kim P. Hansen, Christina B. Olausson, Jes Broeng, Kent Mattsson, Martin D. Nielsen, Thomas Nikolajsen, Peter M. W. Skovgaard, Mads Hoy Sørensen, Mark Denninger, Christian Jakobsen, and Harald R Simonsen "Airclad fiber laser technology", Proc. SPIE 6873, Fiber Lasers V: Technology, Systems, and Applications, 687307 (7 February 2008); https://doi.org/10.1117/12.779582

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