Opt Lett 2009 May;34(9):1489-91
Université de Bordeaux-CNRS-CEA, Centre Lasers Intenses et Applications (CELIA), 351 cours de la Libération F-33405 Talence, France.
Opt Lett 2007 Dec;32(24):3495-7
Friedrich-Schiller-Universität Jena, Institut für Angewandte Physik, Albert-Einstein-Strasse 15, D-07745 Jena, Germany.
We report on an ytterbium-doped fiber chirped-pulse amplification (CPA) system delivering millijoule level pulse energy at repetition rates above 100 kHz corresponding to an average power of more than 100 W. The compressed pulses are as short as 800 fs. As the main amplifier, an 80 microm core diameter short length photonic crystal fiber is employed, which allows the generation of pulse energies up to 1. Read More
Opt Lett 2007 Aug;32(15):2230-2
Friedrich-Schiller-University Jena, Institute of Applied Physics, Albert-Einstein-Strasse 15, D-07745 Jena, Germany.
We report on an ytterbium-doped fiber based chirped-pulse amplification system delivering 100 microJ pulse energy at a repetition rate of 900 kHz, corresponding to an average power of 90 W. The emitted pulses are as short as 500 fs. To the best of our knowledge, this is the highest average power ever reported for high-energy femtosecond solid-state laser systems. Read More
Opt Lett 2005 Oct;30(20):2754-6
Institute of Applied Physics, Friedrich Schiller University Jena, Germany.
We report on an ytterbium-doped photonic-crystal-fiber-based chirped-pulse amplification system delivering 131 W average power 220 fs pulses at 1040 nm center wavelength in a diffraction-limited beam. The pulse repetition rate is 73 MHz, corresponding to a pulse energy of 1.8 microJ and a peak power as high as 8. Read More
Opt Lett 2007 Oct;32(19):2870-2
IMRA America, Inc., Ann Arbor, Michigan 48105, USA.
We report on a passive cavity-enhanced Yb-fiber laser frequency comb generating 230 MW of peak power (3 kW of average power) at a 136 MHz pulse repetition rate. The intracativy peak intensity of 3 x 10(14) W/cm2 for the 95 fs pulse is sufficient to ionize noble gases, such as Xe, Kr, or Ar. The laser system is based on a mode-locked Yb-fiber similariton oscillator in conjunction with a cladding-pumped chirped-pulse fiber amplifier. Read More