[in Chinese], [in Chinese], [in Chinese]^*, [in Chinese], and [in Chinese]^*

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DOI: 10.3788/IRLA20210822 Cite this Article

[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. [J]. Infrared and Laser Engineering, 2021, 50(11): 20210822 Copy Citation Text

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Fig. 1. Experimental setup of the fiber amplifier based on a bidirectional tandem pumping

Fig. 2. (a) Output power as a function of pump power; (b) Output spectra under different powers

Fig. 3. (a) Temporal PD traces and corresponding frequency components at maximum power 6.22 kW; (b) Beam quality at maximum power 6.22 kW

[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. [J]. Infrared and Laser Engineering, 2021, 50(11): 20210822

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