High power Yb:YAG single-crystal fiber amplifiers for femtosecond lasers (orale)

Abstract : We describe a multi-stages single crystal fiber (SCF) amplifier for the amplification of femtosecond pulses with radial or azimuthal polarization in view of high speed material processing (surface structuring, drilling). We demonstrate a three stages diode-pumped Yb:YAG single crystal fiber amplifier to achieve femtosecond pulses at an average power of 85W at 20 MHz in radial and azimuthal polarization.
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Fabien Lesparre, Igor Martial, Jean Thomas Gomes, Julien Didierjean, Wolfgang Pallmann, et al.. High power Yb:YAG single-crystal fiber amplifiers for femtosecond lasers (orale). SPIE Photonics West, Solid State Lasers XXIV: Technology and Devices, Feb 2015, San Francisco, France. pp.934203, ⟨10.1117/12.2079045⟩. ⟨hal-01163227⟩

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