https://doi.org/10.1140/epjst/e2015-02566-8
Review
Divided-pulse amplification for terawatt-class fiber lasers
1 Institute of Applied Physics, Abbe Center of Photonics, Friedrich-Schiller-Universität Jena, Albert-Einstein-Str. 15, 07745 Jena, Germany
2 Helmholtz-Institute Jena, Fröbelstieg 3, 07743 Jena, Germany
3 Fraunhofer Institute for Applied Optics and Precision Engineering, Albert-Einstein-Str. 7, 07745 Jena, Germany
a e-mail: eidam.tino@uni-jena.de
Received: 30 June 2014
Revised: 31 August 2015
Published online: 26 October 2015
The coherent combination of ultra short laser pulses is a promising approach for scaling the average and peak power of ultrafast lasers. Fiber lasers and amplifiers are especially suited for this technique due to their simple singe-pass setups that can be easily parallelized. Here we propose the combination of the well-known approach of spatially separated amplification with the technique of divided-pulse amplification, i.e. an additionally performed temporally separated amplification. With the help of this multidimensional pulse stacking, laser systems come into reach capable of emitting 10's of joules of energy at multi-kW average powers that simultaneously employ a manageable number of fibers.
© EDP Sciences, Springer-Verlag, 2015
