Spectral and Laser Properties of Yb:LuAG Transparent Ceramics Fabricated by Tape Casting Method
Spectral and Laser Properties of Yb:LuAG Transparent Ceramics Fabricated by Tape Casting Method
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DOI：
10.1111/jace.14322
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发表时间：
2016-10
影响因子：
3.9
通讯作者：
Chaoyang Ma;F. Tang;Jiangfeng Zhu;Miaomiao Du;Xuan-yi Yuan;Yang Yu;Ke Wang;Zicheng Wen;Jiantao Zhang;Jiaqi Long;Wang Guo;Yongge Cao
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文献类型：
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作者：
Chaoyang Ma;F. Tang;Jiangfeng Zhu;Miaomiao Du;Xuan-yi Yuan;Yang Yu;Ke Wang;Zicheng Wen;Jiantao Zhang;Jiaqi Long;Wang Guo;Yongge Cao
采用非水带铸造法和真空烧结技术制备了不同Yb3+掺杂浓度的掺镱LuAG激光陶瓷。给出了陶瓷的XRD图谱和SEM形貌。掺Yb的LuAG陶瓷在1030nm处的光学在线透射率约为83%。比较了退火和未退火陶瓷样品的荧光寿命。从光谱特性可以看出，该陶瓷具有2.9 × 10−20cm2的大发射截面，在1030 nm处的FWHM约为7.2 nm。在100%种群反转下，1030 nm处的最大增益系数估计为12.4 cm−1。以光纤耦合二极管激光器为泵浦源，实现了1030 nm的连续波激光器，最大输出功率为338.9 mW，斜率效率为19%。调谐范围为1028 ~ 1036 nm。
Yb3+‐doped LuAG laser ceramics with different Yb3+‐doping concentrations were successfully fabricated by nonaqueous tape casting method and vacuum sintering technology. XRD patterns and SEM morphologies of the ceramics were presented. The optical in‐line transmittance of the Yb‐doped LuAG ceramics was about 83% at 1030 nm. The fluorescence lifetime of annealed and unannealed ceramic samples was compared. From the spectroscopic properties, it can be seen that the ceramics had a large emission cross section of 2.9 × 10−20cm2with a FWHM of about 7.2 nm at 1030 nm. Under 100% population inversion, the maximum gain coefficient was estimated to be 12.4 cm−1at 1030 nm. With a fiber‐coupled diode laser as pump source, CW laser at 1030 nm was demonstrated and the maximum output power of 338.9 mW was achieved with a slop efficiency of 19%. A tuning range from 1028 to 1036 nm was obtained.