10 February 2011 Power scaling of femtosecond enhancement cavities and high-power applications
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Abstract
An Yb-based 78-MHz repetition rate fiber-amplified frequency comb is used to investigate the power scaling limitations of a standard-design bow tie high-finesse enhancement cavity for XUV generation. With a Xenon gas jet in the 22-μm-radius focus, the 200-fs intra-cavity circulating pulse reaches a maximum of 20 kW of time-averaged power. A novel cavity design is presented, conceived to overcome the observed enhancement limitations and offering the prospect of few-nm high-power high-harmonic generation. Several applications which come into reach for the first time are discussed.
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Ioachim Pupeza, Ioachim Pupeza, Tino Eidam, Tino Eidam, Jan Kaster, Jan Kaster, Birgitta Bernhardt, Birgitta Bernhardt, Jens Rauschenberger, Jens Rauschenberger, Akira Ozawa, Akira Ozawa, Ernst Fill, Ernst Fill, Thomas Udem, Thomas Udem, Matthias F. Kling, Matthias F. Kling, Jens Limpert, Jens Limpert, Zeyad A. Alahmed, Zeyad A. Alahmed, Abdallah M. Azzeer, Abdallah M. Azzeer, Andreas Tünnermann, Andreas Tünnermann, Theodor W. Hänsch, Theodor W. Hänsch, Ferenc Krausz, Ferenc Krausz, "Power scaling of femtosecond enhancement cavities and high-power applications", Proc. SPIE 7914, Fiber Lasers VIII: Technology, Systems, and Applications, 79141I (10 February 2011); doi: 10.1117/12.877532; https://doi.org/10.1117/12.877532
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