7 March 2014 High-pulse energy and average-power ultrashort laser pulses via nonlinear compression of coherently combined fiber CPA system
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Abstract
Coherent combination applied to state-of-the-art femtosecond fiber CPA systems has recently opened the route towards high energy and average power laser systems. The ~2 mJ, 340 fs, 196 W (100 kHz) pulses of such a system are coupled to an argon-filled hollow-core fiber for spectral broadening via self-phase modulation. Subsequent compression in a chirped mirror compressor leads to ~1 mJ, 45 fs, 96 W pulses. Under different conditions 580 μJ, 26 fs, 11.6 GW, 135 W (250 kHz) pulses are achieved. This is an unprecedented combination of average power and pulse energy.
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Steffen Hädrich, Steffen Hädrich, Arno Klenke, Arno Klenke, Armin Hoffmann, Armin Hoffmann, Tino Eidam, Tino Eidam, Thomas Gottschall, Thomas Gottschall, Jan Rothhardt, Jan Rothhardt, Jens Limpert, Jens Limpert, Andreas Tünnermann, Andreas Tünnermann, } "High-pulse energy and average-power ultrashort laser pulses via nonlinear compression of coherently combined fiber CPA system", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89611E (7 March 2014); doi: 10.1117/12.2039603; https://doi.org/10.1117/12.2039603
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