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2-kW all polarization-maintaining fiber ultrafast laser at a GHz repetition rate
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DOI：10.3788/COL202523.031402.png)
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Abstract
En 中文
In this Letter, we report a 2-kW all polarization-maintaining (PM) fiber ultrafast laser from a single fiber link, which has a center wavelength of 1064 nm and a repetition rate of 1.39 GHz. To the best of our knowledge, this is the highest average power from all PM fiber lasers at 1.0 mu m. Its beam quality (M-2) is measured to be <1.2, and the pulse width after compression is measured to be similar to 855 fs.
Keywords:
high-power fiber laser
ultrafast fiber optics
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