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

Fabien Lesparre (1) , Igor Martial (1) , Jean Thomas Gomes (2) , Julien Didierjean (1) , Wolfgang Pallmann (3) , Bojan Resan (3) , André Loescher (4) , Jan-Philipp Negel (4) , Thomas Graf (4) , Marwan Abdou Ahmed (4) , François Balembois (2) , Patrick Georges (2)

1 Fibercryst
2 Laboratoire Charles Fabry / Lasers
3 JDSU Laser Products
4 IFSW - Institut für Strahwerkzeuge

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.

Domains: Physics [physics]

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⟩