A powerful diode-pumped laser source for micro-machining with ps pulses in the infrared, the visible and the ultraviolet

被引：62
|
作者：
Kleinbauer, J [1 ]
Knappe, R [1 ]
Wallenstein, R [1 ]
机构：
[1] Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 80卷 / 03期
关键词：
D O I：
10.1007/s00340-004-1710-4
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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.
引用
收藏
页码：315 / 320
页数：6
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