Yb:LuAG晶体

Yb:LuAG是应用前景广阔的激光工作物质,Yb:LuAG更适合激光二极管泵浦系统，并不适合传统的掺钕激光系统的泵浦结构。Yb:LuAG晶体或掺镱钇铝石榴石可输出0.94  μm激光，与传统的Nd:YAG晶体相比，Yb:LuAG晶体或掺镱钇铝石榴石具有更大的吸收带宽,更长的上能级寿命，3-4倍更低的单位泵浦功率热负 荷。
Yb:LuAG晶体或掺镱钇铝石榴石在高功率半导体泵浦激光器领域，被人们认为是取代Nd:YAG 晶体的最佳选择。
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Yb:LuAG

Undoped YAG has higher thermal conductivity compared to undoped LuAG. Increasing Yb³⁺  doping leads to a drop of in thermal conductivity. In Yb:YAG thermal  conductivity decreases to almost half of its initial value, while  Yb:LuAG displays a drop of only 10%. Heavily doped Yb:LuAG can be  advantageously used in thin disc lasers.

Physical properties	Yb:YAG			Yb:LuAG
Pump wavelength	941 nm			938 nm
Absorption cross section	8,2 . 10-21 cm2			7,2 . 10-21 cm2
Emission wavelength	1030 nm			1031 nm
Emission cross section	2,1 . 10-20 cm2			2,6 . 10-20 cm2
Laser transition	2F5/2 --> 2F7/2			2F5/2 --> 2F7/2
Refractive transition	1,82			1,84
Crystal structure	cubic			cubic