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Coherent combination of ultrafast laser a path towards high repetition rate Joule-class fs pulses

: Limpert, J.


Institute of Electrical and Electronics Engineers -IEEE-:
11th Conference on Lasers and Electro-optics Pacific Rim, CLEO-PR 2015 : 24-28 Aug. 2015, Busan, Korea
Piscataway, NJ: IEEE, 2015
ISBN: 978-1-4673-7111-7
ISBN: 978-1-4673-7109-4
2 pp.
Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) <11, 2015, Busan>
Conference Paper
Fraunhofer IOF ()

In recent years intense laser pulses have found applications in various industrial and scientific areas. Significant progress has been made in scaling the energy of the pulses as well as the average power. However, different amplification schemes have been pushed to their specific limits, caused by detrimental nonlinear effects, by damage or by the occurrence of thermo-optical effects. New concepts have to be considered to address these issues and to enable new application fields. In that context, I will review the basics and achievements of coherent combination of amplified femtosecond pulses, a concept which has already out-performed single aperture femtosecond laser systems and which allows for a scaling to unprecedented performance levels, i.e. the combination of highest peak power (Petawatt) and highest average power (Megawatt).