85-W Burst-Mode Pulse Fiber Amplifier Based on a Q-Switched Mode-Locked Laser With Output Energy 0.5 mJ per Burst Pulse
85-W Burst-Mode Pulse Fiber Amplifier Based on a Q-Switched Mode-Locked Laser With Output Energy 0.5 mJ per Burst Pulse
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DOI：
10.1109/jlt.2015.2397007
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发表时间：
2015-02
影响因子：
4.7
通讯作者：
Hai-juan Yu;Jing-yuan Zhang;Yaoyao Qi;Ling Zhang;S. Zou;Lei Wang;Xuechun Lin
中科院分区：
文献类型：
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作者：
Hai-juan Yu;Jing-yuan Zhang;Yaoyao Qi;Ling Zhang;S. Zou;Lei Wang;Xuechun Lin
我们报道了一个紧凑的85w爆发模式脉冲光纤放大器，由1064nm的调q锁模激光种子。在154 kHz的重复频率下，脉冲持续时间为4 μs，包含280个20-ps脉冲，时间空间为~14 ns，总脉冲能量约为552 μJ /脉冲。通过增加种子激光器的泵浦功率，可以在121 ~ 154 kHz范围内调节脉冲数和脉冲重复频率。据我们所知，这是第一次观察到这种基于调q锁模种子激光器的突发脉冲放大器。在我们的实验中，当输出功率小于85 W时，没有观察到明显的自发辐射放大和受激拉曼散射。
We report a compact 85-W burst-mode pulse fiber amplifier seeded by a Q-switched mode-locked laser at 1064 nm. At a repetition rate of 154 kHz, the pulse duration of the burst is 4 μs containing 280 of 20-ps pulses with temporal space of ~14 ns, and the total burst energy is about 552 μJ per pulse. The pulse number and the burst repetition frequency can be adjusted from 121 to 154 kHz through increasing the pump power of the seed laser. To the best of our knowledge, this is the first time to observe this type burst pulse amplifier based on the Q-switched mode-locked seed laser. No significant amplified spontaneous emission and stimulated Raman scattering were observed in our experiment when the output power is less than 85 W.