Third-order nonlinearity and passive Q-switching of Cr4+:YGG garnet crystal
Wang, SX (Wang, Shuxian); Zhang, YX (Zhang, Yuxia); Wu, K (Wu, Kui); Zhang, R (Zhang, Rui); Yu, HH (Yu, Haohai); Zhang, HJ (Zhang, Huaijin); Zhang, GH (Zhang, Guanghui); Xiong, QH (Xiong, Qihua)
2015
发表期刊OPTICS LETTERS
卷号40期号:10页码:2421-2424
摘要

We demonstrate the third-order nonlinear optical properties of Cr4+:Y3Ga5O12 ( Cr4+:YGG) and Q-switched lasers with Cr4+:YGG as the saturable absorber for the first time to our knowledge. The third-order nonlinear properties, including the optical Kerr nonlinearity and saturable absorption, were systematically measured and analyzed in detail by using a Z-scan technique. The measured data show that Cr4+:YGG has a large nonlinear refractive index, ground-state absorption cross section, and excited-state absorption cross section in contrast to Cr4+:Y3Al5O12 ( Cr4+:YAG). With a Nd:YGG crystal as the gain medium and a Cr4+:YGG crystal as the saturable absorber, the passively Q-switched laser was performed. The shortest pulse width and largest pulse energy were achieved at the absorbed pump power of 8 W with the values of 9.1 ns and 26.1 mu J, respectively, corresponding to the average output power of 0.87 W and peak power of 2.9 kW. The results indicate that Cr4+:YGG is an available and promising optical switcher for pulsed lasers.

DOI10.1364/OL.40.002421
收录类别SCI
WOS记录号WOS:000354708300068
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5159
专题新疆维吾尔自治区电子信息材料与器件重点实验室
作者单位1.Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
2.Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
4.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore
推荐引用方式
GB/T 7714
Wang, SX ,Zhang, YX ,Wu, K ,et al. Third-order nonlinearity and passive Q-switching of Cr4+:YGG garnet crystal[J]. OPTICS LETTERS,2015,40(10):2421-2424.
APA Wang, SX .,Zhang, YX .,Wu, K .,Zhang, R .,Yu, HH .,...&Xiong, QH .(2015).Third-order nonlinearity and passive Q-switching of Cr4+:YGG garnet crystal.OPTICS LETTERS,40(10),2421-2424.
MLA Wang, SX ,et al."Third-order nonlinearity and passive Q-switching of Cr4+:YGG garnet crystal".OPTICS LETTERS 40.10(2015):2421-2424.
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