光学学报, 2017, 37 (8): 0816001, 网络出版: 2018-09-07  

凝胶老化对镱铝共掺SiO2粉晶化和光谱性能的影响 下载: 893次

Influences of Gel Aging on Crystallization and Spectroscopic Property of Yb 3+/Al 3+ Co-Doped SiO2 Powders
作者单位
1 中国科学院上海光学精密机械研究所强激光材料重点实验室, 上海 201800
2 中国科学院大学, 北京 100049
摘要
采用SiCl4水解法制备了镱铝共掺石英光纤纤芯原料粉,在O2氛围下1100 ℃烧结除羟基处理后,原料粉析出了α-石英相。对镱铝共掺硅酸凝胶进行了常温老化和高压釜高温高压老化处理。测试结果表明,老化处理有效地抑制了镱铝共掺石英玻璃原料粉的析晶行为,Yb 3+的荧光强度和荧光寿命得到提高,说明高压釜处理可缩短老化处理时间并提高荧光性能,是制备镱铝共掺石英玻璃原料粉的重要工艺。
Abstract
Raw material powders of Yb 3+/Al 3+co-doped silica fiber core are fabricated with the SiCl4 hydrolysis method, and the α-silica phase is precipitated after the sintering treatment of removing hydroxyl at 1100 ℃ under the atmosphere of O2. The Yb 3+/Al 3+co-doped silicic acid gels are treated by the normal temperature aging and the high-temperature high-pressure aging in an autoclave. The test results show that the aging treatment can effectively suppress the crystallization of Yb 3+/Al 3+co-doped silica glass raw material powders and the fluorescence intensity and lifetime of Yb 3+ are enhanced. It is validated that the autoclave treatment can shorten the aging time and enhance the fluoresence property, which is an important process of preparing Yb 3+/Al 3+co-doped silica glass raw material powders.

尹圣楠, 杨科, 韩帅, 周秦岭, 许文彬, 王璠, 胡丽丽, 陈丹平. 凝胶老化对镱铝共掺SiO2粉晶化和光谱性能的影响[J]. 光学学报, 2017, 37(8): 0816001. Shengnan Yin, Ke Yang, Shuai Han, Qinling Zhou, Wenbin Xu, Fan Wang, Lili Hu, Danping Chen. Influences of Gel Aging on Crystallization and Spectroscopic Property of Yb 3+/Al 3+ Co-Doped SiO2 Powders [J]. Acta Optica Sinica, 2017, 37(8): 0816001.

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