11 March 2016 Electro-optically controlled divided-pulse amplification
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Abstract
We present a spatial and temporal coherent-beam-combination system based on a fiber-integrated front-end, electro-optical components, and optical delay lines. The system features a larger scaling potential, enhanced stability and reduced alignment sensitivity compared to known divided-pulse amplification schemes. In a proof-of-principle experiment combining 4 pulses, a combining efficiency larger than 95% and a high amplitude stability are demonstrated. The efficiency is largely independent of the combined pulse energy and the temporal pulse contrast is better than 20 dB.
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M. Müller, M. Wojdyr, M. Kienel, A. Klenke, J. Limpert, A. Tünnermann, "Electro-optically controlled divided-pulse amplification", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97282J (11 March 2016); doi: 10.1117/12.2212219; https://doi.org/10.1117/12.2212219
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