Femtosecond fiber CPA system emitting 830 W average output power.
In this Letter we report on the generation of 830 W compressed average power from a femtosecond fiber chirped pulse amplification (CPA) system. In the high-power operation we achieved a compressor throughput of about 90% by using high-efficiency dielectric gratings. The output pulse duration of 640 fs at 78 MHz repetition rate results in a peak power of 12 MW. Additionally, we discuss further a scaling potential toward and beyond the kilowatt level by overcoming the current scaling limitations imposed by the transversal spatial hole burning.
Eidam
Tino
T
Friedrich-Schiller-University Jena, Institute of Applied Physics, Albert-Einstein-Str. 15, 07745 Jena, Germany. eidam@iap.uni-jena.de
Hanf
Stefan
S
Seise
Enrico
E
Andersen
Thomas V
TV
Gabler
Thomas
T
Wirth
Christian
C
Schreiber
Thomas
T
Limpert
Jens
J
Tünnermann
Andreas
A