A powerful diode-pumped laser source for micro-machining with ps pulses in the infrared, the visible and the ultraviolet
A powerful diode-pumped laser source for micro-machining with ps pulses in the infrared, the visible and the ultraviolet
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DOI：
10.1007/s00340-004-1710-4
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发表时间：
2005-03-01
影响因子：
2.1
通讯作者：
Wallenstein, R
中科院分区：
文献类型：
--
作者：
Kleinbauer, J;Knappe, R;Wallenstein, R
本文报道了一种用于微加工的二极管泵浦Nd:YVO4激光系统。该系统由被动锁模振荡器和再生放大器组成。它提供1064 nm的激光脉冲，脉冲持续时间为10.2 ps，重复频率为20 kHz，平均输出功率为10.8 W。这个平均功率相当于0.54兆焦耳的脉冲能量。LBO中的二次谐波和BBO中的四次谐波分别提供可见光（532 nm）和紫外线（266 nm）的脉冲能量，分别为270 μ J和75 μ J。在二极管泵浦的单通Nd:YVO4放大器中进行放大，使1064 nm激光脉冲的基本脉冲能量增加到1 mJ。
We report a ps diode-pumped Nd:YVO4 laser system for micro-machining applications. The system consists of a passively mode-locked oscillator followed by a regenerative amplifier. It provides laser pulses at 1064 nm with a pulse duration of 10.2 ps, a repetition rate of 20 kHz and an average output power of 10.8 W. This average power corresponds to a pulse energy of 0.54 mJ. Second-harmonic generation in LBO and fourth-harmonic generation in BBO provide visible (532-nm) and ultraviolet (266-nm) radiation with pulse energies of 270 mu J and 75 mu J, respectively. Amplification in a diode-pumped single-pass Nd:YVO4 amplifier increases the pulse energy of the fundamental 1064-nm laser pulses to I mJ.