7 March 2014 Divided-pulse nonlinear compression
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Abstract
Passive spatial and temporal coherent combining schemes are implemented to scale the output energy of a nonlinear temporal compression setup. By generating 32 replicas of the incident femtosecond pulses, the output of a high energy fiber chirped-pulse amplifier can be compressed using self-phase modulation in a large mode area rod-type fiber at peak power levels well beyond the self-focusing threshold of 4 MW. We demonstrate the generation of 71 fs 7.5 μJ pulses at 100 kHz repetition rate, corresponding to a peak power of 86 MW.
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Florent Guichard, Yoann Zaouter, Marc Hanna, Frédéric Druon, Eric Mottay, Patrick Georges, "Divided-pulse nonlinear compression", Proc. SPIE 8961, Fiber Lasers XI: Technology, Systems, and Applications, 89610L (7 March 2014); doi: 10.1117/12.2037195; https://doi.org/10.1117/12.2037195
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