110 W all-fiber picosecond master oscillator power amplifier based on large-core-diameter ytterbium-doped fiber.
110 W all-fiber picosecond master oscillator power amplifier based on large-core-diameter ytterbium-doped fiber.
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DOI：
10.1364/ao.55.004119
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发表时间：
2016-05
期刊：
影响因子：
1.9
通讯作者：
Zhenhua Yu;W. Shi;Xinzheng Dong;Jinhui Li;Yizhu Zhao;Huixian Liu
中科院分区：
文献类型：
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作者：
Zhenhua Yu;W. Shi;Xinzheng Dong;Jinhui Li;Yizhu Zhao;Huixian Liu
我们演示了主振荡器功率放大器配置中的全光纤皮秒光纤激光器。种子源采用半导体可饱和吸收镜和啁啾光纤光栅组成的被动锁模孤子型掺镱光纤激光器。种子激光器的脉冲宽度为4.5 ps，重复频率为15 MHz。采用大芯径（50 μm）的高掺杂有源光纤将种子脉冲的平均功率提高到117 W，脉冲宽度为11 ps，峰值功率为709 kW。在最大输出功率下，相应的输出光束质量因子为3.7。整个激光系统的全光纤结构实现了紧凑的尺寸和稳健的操作。
We demonstrate an all-fiber picosecond fiber laser in a master oscillator power amplifier configuration. The seed source is a soliton-type passively mode-locked Yb-doped fiber laser by a semiconductor saturable absorber mirror and chirped fiber Bragg grating. The pulse width of the seed laser is 4.5 ps with a repetition rate of 15 MHz. A highly doped active fiber with a large core diameter (50 μm) is employed to boost the average power of the seed pulses to 117 W with 11 ps pulse width and 709 kW peak power. The corresponding output beam quality factor at maximum output power is 3.7. The all-fiber construction of the whole laser system enables compact size and robust operation.