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2.1mJ, 210W femtosecond fiber CPA system

: Klenke, Arno; Hoffmann, Armin; Hädrich, Steffen; Eidam, Tino; Gottschall, Thomas; Limpert, Jens; Tünnermann, Andreas


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 (SPIE Proceedings 8961)
ISBN: 978-0-8194-9874-8
Paper 89611D
Conference "Fiber Lasers - Technology, Systems, and Applications" <11, 2014, San Francisco/Calif.>
Fraunhofer IOF ()
fiber laser; coherent beam combining; ultrashort pulses

The coherent combining of ultrashort pulses is a concept for scaling the pulse energy and average power of laser systems emitting ultrashort pulses. This concept has already been demonstrated for two-channel systems. In this contribution we report on a four-channel system that delivers 2.1 mJ pulse energies at a repetition rate of 100 kHz and 210 W of average power after compression. A combination efficiency of 88% was achieved and this demonstrates the scalability of the combining approach to a larger number of channels.