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Divided-pulse amplification for high energy extraction

: Kienel, M.


Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid State Lasers, ASSL 2013 : October 27, 2013 - November 1, 2013, Paris, France
Washington, DC: OSA, 2013 (OSA Technical digest series)
ISBN: 978-1-55752-982-4
Paper ATu3A.09
Conference "Advanced Solid State Lasers" (ASSL) <2013, Paris>
Fraunhofer IOF ()

We present a universal method for energy-scaling of fiber chirped-pulse-amplification systems using the concept of actively controlled divided-pulse amplification incorporating separated free-space division and recombination stages allowing for nanosecond delays. This allows for efficient combining with high energy extraction and high B-integrals. In a first experiment femtosecond pulses with pulse energies of 1 mJ have been achieved.