4 March 2015 A double clad ytterbium fibre laser operating at 400°C
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Very high temperature operation of a rare earth doped fibre laser is investigated. An all-glass ytterbium-doped fibre laser is demonstrated, operating at heat sink temperatures ranging from 25°C to 400°C and output powers of > 40 W. Over this temperature range only a small reduction in laser output power was observed. The emission spectrum of this source was also measured for heat sink temperatures up to 400°C. We discuss the advantages of operating at such extended temperatures such as weight savings from reduced heat sink size, extended long wavelength operation and suppression of detrimental non-linear effects.
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Jae M. O. Daniel, Jae M. O. Daniel, Nikita Simakov, Nikita Simakov, Alexander Hemming, Alexander Hemming, W. Andrew Clarkson, W. Andrew Clarkson, John Haub, John Haub, } "A double clad ytterbium fibre laser operating at 400°C", Proc. SPIE 9344, Fiber Lasers XII: Technology, Systems, and Applications, 934414 (4 March 2015); doi: 10.1117/12.2078192; https://doi.org/10.1117/12.2078192

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