Wegner U, Meier J, Lederer M J
High Q Laser Innovation GmbH, Feldgut 9, A-6830, Rankweil, Austria.
Opt Express. 2009 Dec 7;17(25):23098-103. doi: 10.1364/OE.17.023098.
We report on a diode pumped, semiconductor saturable absorber mirror mode-locked picosecond Nd:YVO(4) oscillator with cavity-dumping. In pure cw-mode-locking this laser produced up to 17W of average power at a pulse repetition rate of 9.7MHz, corresponding to a pulse energy of 1.7microJ. Using an electro-optic cavity dumper, we achieved average powers up to 7.8W at 500kHz and 10W at 1MHz dumping rate. With corresponding pulse energies of 15.6microJ and 10microJ respectively and pulsewidths around 10ps, this laser could become a compact source for materials processing applications, alternative to more complex schemes such as regenerative amplifiers or ultra-long resonator oscillators.
我们报道了一种采用腔倒空技术的二极管泵浦、半导体可饱和吸收镜锁模皮秒Nd:YVO₄振荡器。在纯连续波锁模状态下，该激光器在9.7MHz的脉冲重复频率下可产生高达17W的平均功率，对应脉冲能量为1.7微焦。使用电光腔倒空器，在500kHz的倒空速率下我们实现了高达7.8W的平均功率，在1MHz倒空速率下实现了10W的平均功率。分别具有15.6微焦和10微焦的相应脉冲能量以及约10皮秒的脉冲宽度，该激光器可成为材料加工应用中的紧凑光源，替代诸如再生放大器或超长谐振腔振荡器等更复杂的方案。
