光学学报, 2005, 25 (4): 511, 网络出版: 2006-05-22
铬、钕双掺钆镓石榴石(Cr4+,Nd3+)∶Gd3Ga5O12激光晶体光学性能的研究
Optical Properties of Cr, Nd Co-Doped Solid-State Laser Crystal (Cr4+,Nd3+)∶Gd3Ga5O12
光学材料 光谱性质 高功率固体激光晶体 optical materials (Cr4+ (Cr4+ Nd3+)∶GGG Nd3+)∶GGG spectral properties high-average power laser crystal
摘要
用提拉法生长了掺铬、钕的钆镓石榴石(Cr4+,Nd3+∶GGG)自调Q激光晶体。报道了室温下的吸收光谱和荧光光谱特性。分析了Cr离子浓度对光谱性质的影响。比较了Cr4+∶GGG,Nd3+∶GGG和(Cr4+,Nd3+)∶GGG晶体吸收光谱的关系。测量了(Cr4+,Nd3+)∶GGG晶体和Nd3+∶GGG晶体的荧光寿命,它们分别是33 μs和250 μs。实验表明,(Cr4+,Nd3+)∶GGG晶体是一种非常有潜力的自调Q激光晶体,可以实现大功率激光器的小型化和全固态化。
Abstract
The high-average-power solid-state-laser (HAP SSL) crystal (Cr4+,Nd3+)∶Gd3Ga5O12 [(Cr4+,Nd3+)∶GGG] has been grown by the Czochralski method. The optical spectra of (Cr4+,Nd3+)∶Gd3Ga5O12 single crystals with 2at.% Nd and different Cr4+ concentrations were measured. The effect of Cr concentrations on, fluorescence lifetime and fluorescence peak wavelength of (Cr,Nd)∶GGG crystals were analyzed. The absorption spectra of Cr4+∶GGG, Nd3+∶GGG and (Cr4+,Nd3+)∶GGG crystal are compared. The fluorescent lifetime of (Cr4+,Nd3+)∶GGG and Nd3+∶GGG are 33 μs and 240 μs, respectively. This crystal may be potential materials for compact, efficient, high stability laser-diode-pumped passive Q-switched solid-state laser.
姜本学, 徐晓东, 宋平新, 王晓丹, 张连翰, 何晓明, 徐军. 铬、钕双掺钆镓石榴石(Cr4+,Nd3+)∶Gd3Ga5O12激光晶体光学性能的研究[J]. 光学学报, 2005, 25(4): 511. 姜本学, 徐晓东, 宋平新, 王晓丹, 张连翰, 何晓明, 徐军. Optical Properties of Cr, Nd Co-Doped Solid-State Laser Crystal (Cr4+,Nd3+)∶Gd3Ga5O12[J]. Acta Optica Sinica, 2005, 25(4): 511.
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