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Nanosecond-pulsed, Yb-doped fibre laser has been used to create laser induced periodic surface structure on the surface of stainless steel. Grating periodic structure for visible light with distance of 1 μm is demonstrated and explained.
We investigated the performance of Bi-doped fiber amplifier at 1179 nm, in both low and high input signal regime, when pumped at 1090 nm. The amplifier efficiency and the saturation power both depend on the fiber cooling.
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