22 February 2017 High peak-power fiber laser based on a non filamented-core fully-aperiodic large pitch fiber
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Abstract
In this communication, the authors report on the first high peak-power emission obtained using a solid non-filamented core fully-aperiodic large pitch fiber manufactured by the REPUSIL method which is based on the sintering and vitrification of micrometric doped silica powders. Using a simple amplifier stage based on a 75 cm long piece of a fullyaperiodic large pitch fiber with a fiber core of 50 μm, an average output power of 95 W was achieved with an available pump power of 175 W, corresponding to an optical-to-optical efficiency of 54 %. The peak power reaches about 35 kW for pulse duration of 200 ps at a repetition rate of 13.5 MHz. A recent evolution of our set-up using a seeder delivering an average power of 4 W at 1 MHz with a pulse duration of 50 ps led to the emission of 71.4W in average power corresponding to a peak power of 1.42 MW. These results present the first demonstration of high average and high peak power in pulsed regime for these fibers.
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A. Benoit, M. A. Malleville, R. Du Jeu, R. Dauliat, D. Darwich, R. Jamier, S. Grimm, Jens Kobelke, K. Schuster, P. Roy, "High peak-power fiber laser based on a non filamented-core fully-aperiodic large pitch fiber", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100831F (22 February 2017); doi: 10.1117/12.2251870; https://doi.org/10.1117/12.2251870
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