22 February 2017 115 W, 10 GHz, femtosecond pulses from a very-large-mode-area Er-doped fiber amplifier
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Abstract
We demonstrate high average power, high peak power amplification of 10 GHz, picosecond and femtosecond pulses in a Very-Large-Mode Area (VLMA), Er-doped fiber with an effective area of ~1050 μm2. A high power, singlemode Raman fiber laser with up to 183 W of power at 1480 nm served as a pump source. 130 femtosecond pulses with an average power of 115 W, peak power of 88 kW, and M2 of 1.18 were achieved. Simulations that take into account pair-induced quenching give excellent agreement with measurements.
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J. W. Nicholson, R. Ahmad, A. DeSantolo, Z. Várallyay, "115 W, 10 GHz, femtosecond pulses from a very-large-mode-area Er-doped fiber amplifier", Proc. SPIE 10083, Fiber Lasers XIV: Technology and Systems, 100831L (22 February 2017); doi: 10.1117/12.2250917; https://doi.org/10.1117/12.2250917
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