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Approaching TW-peak powers at >10 kHz repetition rate by multi-dimensional coherent combining of femtosecond fiber lasers

 
: Breitkopf, Sven; Eidam, Tino; Grafenstein, Lorenz von; Klenke, Arno; Carstens, Henning; Holzberger, Simon; Pupeza, Ioachim; Fill, Ernst; Schreiber, Thomas; Limpert, Jens; Krausz, Ferenc; Tünnermann, Andreas

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Ramachandran, S. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Fiber Lasers XI. Technology, Systems, and Applications : 3 - 6 February 2014, San Francisco, California, United States
Bellingham, WA: SPIE, 2014 (Proceedings of SPIE 8961)
ISBN: 978-0-8194-9874-8
Paper 896106
Conference "Fiber Lasers - Technology, Systems, and Applications" <11, 2014, San Francisco/Calif.>
English
Conference Paper
Fraunhofer IOF ()
coherent combining; cavity enhancement; stack and dump; femtosecond pulses; fiber laser; high power; high energy

Abstract
Novel laser applications such as laser-wake-field acceleration of particles require extreme parameters from ultra-short-pulse systems. We propose a concept capable to realize simultaneously multi-TW peak powers and multi-kW average powers by employing spatially and temporally separated amplification of chirped laser pulses delivered by fiber-amplifiers. As a combining element for the temporally 100 ns separated pulses (10 MHz repetition rate) we suggest a non-steady-state enhancement cavity using a fast switching-element to dump out the enhanced pulses at 15 kHz.

: http://publica.fraunhofer.de/documents/N-283252.html