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12 February 2010 Yb-doped fiber laser system generating 12-ns 0.7-mJ pulses at 82 kHz at 977 nm
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Abstract
We demonstrate an Ytterbium-doped fiber laser system generating high energy pulses at the non-conventional wavelength of 977 nm. An actively Q-switched master fiber oscillator delivers 1.2 W of average power in 12 ns pulses at 82 kHz of repetition rate. This pulsed fiber source is then amplified in an ultra-large core photonic crystal fiber amplifier up to 71 W. Deducing the fraction of power contained in interpulse ASE, we obtained 0.7 mJ pulses at 977 nm, resulting in a pulse peak-power of >55 kW. To the best to our knowledge, this system delivers the highest performances ever demonstrated in this spectral window.
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Johan Boullet, Romain Dubrasquet, Capucine Médina, Ramatou Bello-Doua, Nicholas Traynor, and Eric Cormier "Yb-doped fiber laser system generating 12-ns 0.7-mJ pulses at 82 kHz at 977 nm", Proc. SPIE 7580, Fiber Lasers VII: Technology, Systems, and Applications, 758005 (12 February 2010); https://doi.org/10.1117/12.843677
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