人工晶体学报2017，Vol.46Issue(9)：1653-1659,7.
Cr,Nd:GSAG晶体生长、光谱及LD泵浦激光性能研究
Growth, Spectral Properties and LD Pumped Laser Performances of Cr,Nd:GSAG Crystal
摘要
Abstract
Cr,Nd:GSAG is one type of laser crystal with high performances , but there are few research on its lasing properties by LD pumping .In this work, a Cr,Nd:GSAG crystal was grown by Czochralaki method , its chemical composition , structure and lasing performances were investigated .By measuring the X-ray rocking curve of (111) crystallographic plane of Cr ,Nd:GSAG crystal, the full at half maximum ( FWHM) of the diffraction peak is 0.055°.Its atomic structural parameters and temperature factors were obtained by Rietveld refinement to X-ray diffraction data .The strongest absorption peak of Cr ,Nd:GSAG crystal locates at 808.6 nm and the absorption cross section is 3.38 ×10 -20 cm2 .The strongest emission peak of Cr ,Nd:GSAG crystal under 808 nm excitation locates at 1060 nm and the stimulated emission cross section is 6.04 ×10 -20 cm2 .The fluorescence lifetime of laser upper level 4 F3/2 was measured to be 274 μs.A 1060 nm laser output was achieved by 808 nm LD pumping in the continuous-wave mode .The maximum output power of 0.513 W is obtained with an incident pump power of 8.88 W, corresponding to a slope efficiency of 6.73% and an optical-to-optical conversion efficiency of 5.78%.Besides, energy transfer mechanism between Cr 3+and Nd3+in Cr,Nd:GSAG crystal was discussed .关键词
Cr,Nd:GSAG晶体/光谱/LD泵浦Key words
Cr/Nd:GSAG crystal/spectrum/LD pumping分类
数理科学引用本文复制引用
许晋瑞,张庆礼,彭方,王小飞,窦仁勤,罗健乔,孙贵花,丁守军,孙敦陆..Cr,Nd:GSAG晶体生长、光谱及LD泵浦激光性能研究[J].人工晶体学报,2017,46(9):1653-1659,7.基金项目
国家自然科学基金(51502292,61405206) （51502292,61405206）
