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

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Abstract

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 μJ and 75 μJ, respectively. Amplification in a diode-pumped single-pass Nd:YVO4 amplifier increases the pulse energy of the fundamental 1064-nm laser pulses to 1 mJ.

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Authors and Affiliations

  1. Fachbereich Physik, Technische Universität Kaiserslautern, Erwin-Schrödinger-Strasse 46 , 67663, Kaiserslautern, Germany

    J. Kleinbauer, R. Knappe & R. Wallenstein

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  1. J. Kleinbauer
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  2. R. Knappe
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  3. R. Wallenstein
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Correspondence to J. Kleinbauer.

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PACS

42.55.Xi; 42.60.Da; 42.65.Ky; 42.65.Re

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Kleinbauer, J., Knappe, R. & Wallenstein, R. A powerful diode-pumped laser source for micro-machining with ps pulses in the infrared, the visible and the ultraviolet. Appl. Phys. B 80, 315–320 (2005). https://doi.org/10.1007/s00340-004-1710-4

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  • DOI: https://doi.org/10.1007/s00340-004-1710-4

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