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Low-noise amplification of high-power pulses in multimode fibers

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5 Author(s)
Hofer, M. ; IMRA America Inc., Ann Arbor, MI, USA ; Fermann, M.E. ; Galvanauskas, A. ; Harter, D.
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Low-noise amplification of high-power pulses in multimode erbium/ytterbium-doped fibers is demonstrated. The use of multimode fiber amplifiers allows to overcome the peak power limitations of single-mode amplifiers. As a result femtosecond pulses can be efficiently amplified to peak powers >50 kW in a high-power chirped pulse amplification system using chirped PPLN for frequency-doubling. With an average power level of 1.2 W at the fundamental wavelength of 1.55-μm average powers up to 420 mW are generated at 775 mm.

Published in:

Photonics Technology Letters, IEEE  (Volume:11 ,  Issue: 6 )