Picosecond and nanosecond pulse delivery through a hollow-core Negative Curvature Fiber for micro-machining applications
Picosecond and nanosecond pulse delivery through a hollow-core Negative Curvature Fiber for micro-machining applications
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DOI：
10.1364/oe.21.022742
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发表时间：
2013-09-23
期刊：
影响因子：
3.8
通讯作者：
Hand, Duncan P.
中科院分区：
文献类型：
--
作者：
Jaworski, Piotr;Yu, Fei;Hand, Duncan P.
我们提出了高平均功率皮秒和纳秒脉冲传输在1030 nm和1064 nm波长分别通过一种新型的空芯负曲率光纤（NCF）的高精度微加工应用。平均功率高于36 W、能量为92 μ J的皮秒脉冲（对应于1.5TWcm（-2）的峰值功率密度）已经通过光纤传输，而没有对输入和输出光纤端面引入任何损坏。高能量纳秒脉冲（>1 mJ），这是理想的微加工已成功地通过NCF提供的耦合效率为92%。皮秒和纳秒脉冲传输已经在熔融石英、铝和钛的基于光纤的激光微加工中得到证实。(c)2013年美国光学学会
We present high average power picosecond and nanosecond pulse delivery at 1030 nm and 1064 nm wavelengths respectively through a novel hollow-core Negative Curvature Fiber (NCF) for high-precision micro-machining applications. Picosecond pulses with an average power above 36 W and energies of 92 mu J, corresponding to a peak power density of 1.5 TWcm(-2) have been transmitted through the fiber without introducing any damage to the input and output fiber end-faces. High-energy nanosecond pulses (>1 mJ), which are ideal for micro-machining have been successfully delivered through the NCF with a coupling efficiency of 92%. Picosecond and nanosecond pulse delivery have been demonstrated in fiber-based laser micro-machining of fused silica, aluminum and titanium. (c) 2013 Optical Society of America