We report on the development of an efficient and simple picosecond diode-pumped solid-state laser source with a versatile repetition rate (typically $1\mathrm{Hz}–1\mathrm{MHz}$ ) for material processing applications. The laser source is based on a $4\mathrm{MHz}$ repetiton rate mode-locked oscillator and a passive 3D multipass amplifier both based on $\mathrm{Nd}\text{:}{\mathrm{YVO}}_4$ crystals. Micromachining experiments were performed to study the influence of pulse energy on the machining quality for Al, Cu, paper, and glass.

© 2008 Optical Society of America

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