期刊
OPTICAL MATERIALS EXPRESS
卷 7, 期 8, 页码 2913-2921出版社
OPTICAL SOC AMER
DOI: 10.1364/OME.7.002913
关键词
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资金
- Central University Special Fund Basic Research and Operating Expenses [GK201702005]
- National Natural Science Foundation of China [61378024]
We report on a passively Q-switched Nd:YVO4 laser at 1064.34 nm by using the ferroferric-oxide (Fe3O4) nanoparticles (FONPs) saturable absorber (SA). It is corroborated that the FONPs SA exhibits a large nonlinear saturable absorption property with the modulation depth of 2.49% at the laser wavelength of 1 mu m. By inserting the novel SA into a V-type Nd: YVO4 laser cavity, we obtain the shortest pulse duration of 53 ns with a repetition rate of 576.4 kHz. The corresponding average output power, single pulse energy, and peak power are 104 mW, 0.18 mu J, and 3.53 W, respectively. To the best of our knowledge, it is the first time to experimentally confirm the application of FONPs in a pulsed Nd: YVO4 solid state laser. The parameters of the pulse width, average output power, and peak power are superior to those in the reported pulsed fiber lasers with FONPs SA so far. (C) 2017 Optical Society of America
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