11 March 2016 Advances in CO2 laser fabrication for high power fibre laser devices
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Abstract
CO2 laser processing facilitates contamination free, rapid, precise and reproducible fabrication of devices for high power fibre laser applications. We present recent progress in fibre end-face preparation and cladding surface modification techniques. We demonstrate a fine feature CO2 laser process that yields topography significantly smaller than that achieved with typical mechanical cleaving processes. We also investigate the side processing of optical fibres for the fabrication of all-glass cladding light strippers and demonstrate extremely efficient cladding mode removal. We apply both techniques to fibres with complex designs containing multiple layers of doped and un-doped silica as well as shaped and circularly symmetric structures. Finally, we discuss the challenges and approaches to working with various fibre and glass-types.
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Keiron Boyd, Simon Rees, Nikita Simakov, Jae M. O. Daniel, Robert Swain, Eric Mies, Alexander Hemming, W. Andrew Clarkson, John Haub, "Advances in CO2 laser fabrication for high power fibre laser devices", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 972838 (11 March 2016); doi: 10.1117/12.2210884; https://doi.org/10.1117/12.2210884
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