Femtosecond-induced micostructures in Magnesium- doped Lithium Niobate crystals with high repetition rate

Kan, Hongli; Zhang, Shuanggen; Zhai, Kaili; Ma, Xu; Luo, Yufei; Hu, Minglie; Wang, Qingyue

doi:10.1016/j.optcom.2015.10.060

Cited by 2 publications

(1 citation statement)

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“…Figure 5a shows the magnified picture of damage point at the pump intensity of 2.16 GW/cm 2 . Laser ablation might be caused by the thermal ion emission, for the repetition rate of the fundamental light is as high as 100 MHz and the pulse duration is as short as 150 fs [32]. The power stability of the 515 nm light was tested at 2 W incident fundamental light, as shown in Figure 5b.…”

Section: Resultsmentioning

confidence: 99%

Femtosecond Green Light Generation Using a MgO-Doped Periodically Poled Lithium Niobate Crystal Pumped by a Yb-Doped Fiber Laser

et al. 2022

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We demonstrate, in this paper, the creation of a femtosecond green laser achieved from a MgO-doped periodically poled lithium niobate crystal pumped by a home-made Yb-doped MOPA laser system. With an incident fundamental average power of 2 W, 820 mW (41 nJ) is produced at 515 nm with pulse duration of ~540 fs, corresponding to conversion efficiency of 40%. The standard deviation of the 515 nm pulse-to-pulse intensity is calculated as 0.007 (normalized), and the average power keeps stable with a root-mean-square value of 0.18% in an eight hour measurement. The spectral characters of the green laser and laser-induced damage thresholds of the crystal are also investigated. This stable laser system provides a compact and portable laser source for two-photon photopolymerization application.

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Section: Resultsmentioning

confidence: 99%