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Picosecond diode-pumped laser system with 9.3-W average power and 2.3-mJ pulse energy

机译:皮秒二极管泵浦激光系统,平均功率为9.3W,脉冲能量为2.3mJ

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摘要

We describe a diode-pumped Nd:YAG laser that is suitable for micromachining applications and is capable of generating 2.3-mJ pulses at a 4-kHz pulse repetition frequency. The output pulse duration is 20.5 ps. The system is based on a Nd:YAG regenerative amplifier with a novel four-pass postamplifier. The postamplifier incorporates birefringent depolarization compensation and simultaneously prevents parasitic laser oscillation by use of a nonreciprocal beam path. These output pulse energies are achieved without the use of chirped pulse amplification.
机译:我们描述了一种适用于微加工应用的二极管泵浦Nd:YAG激光器,它能够以4 kHz的脉冲重复频率产生2.3 mJ的脉冲。输出脉冲持续时间为20.5 ps。该系统基于带有新型四通后置放大器的Nd:YAG再生放大器。后置放大器采用双折射去偏振补偿,并通过使用不可逆的光路同时防止寄生激光振荡。在不使用线性调频脉冲放大的情况下即可获得这些输出脉冲能量。

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