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Proceedings Paper

High-power femtosecond fiber laser systems
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Paper Abstract

Fiber laser systems offer unique properties for the amplification of ultrashort pulses to high powers. Two approaches are discussed, the amplification of linearly chirped parabolic pulses and a fiber based chirped pulse amplification system. Using the first method, we succeeded to generate 17-W average power of linearly chirped parabolic pulses at 75 MHz repetition rate and diffraction-limited beam quality in a large-mode-area ytterbium-doped fiber amplifier. The recompression of these pulses with an efficiency of 60% resulted in 80-fs pulses with a peak power of 1.7 MW. Furthermore, we report on a diode-pumped ytterbium-doped double-clad fiber based chirped pulse amplification system delivering 350-fs pulses, at 1060 nm wavelength, 75 MHz repetition rate and up to 60 W average power, corresponding to a peak power of 2.3 MW. Key element is a diffraction grating compressor consisting of highly efficient transmission gratings in fused silica allowing the recompression at this high power. Power scaling to the >100 W level is discussed.

Paper Details

Date Published: 19 June 2003
PDF: 15 pages
Proc. SPIE 4978, Commercial and Biomedical Applications of Ultrafast Lasers III, (19 June 2003); doi: 10.1117/12.473190
Show Author Affiliations
Jens Limpert, Friedrich-Schiller-Univ. Jena (Germany)
Thomas Schreiber, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Liem, Friedrich-Schiller-Univ. Jena (Germany)
Holger Zellmer, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Tunnermann, Friedrich-Schiller-Univ. Jena (Germany)


Published in SPIE Proceedings Vol. 4978:
Commercial and Biomedical Applications of Ultrafast Lasers III
Joseph Neev; Andreas Ostendorf; Christopher B. Schaffer, Editor(s)

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