Nd∶ASL单晶光纤的生长、光谱和激光性能研究

人工晶体学报 ›› 2024, Vol. 53 ›› Issue (11): 1877-1883.

• 激光晶体/ 透明陶瓷 • 上一篇下一篇

Nd∶ASL单晶光纤的生长、光谱和激光性能研究

郭俊¹, 刘坚¹, 王泽彬¹, 陈鹏¹, 宋青松², 马杰¹, 王庆国², 徐晓东¹, 徐军²

1.江苏师范大学物理与电子工程学院,徐州 221116;
2.同济大学物理科学与工程学院,上海 200092

收稿日期:2024-09-23 出版日期:2024-11-15 发布日期:2024-12-09
通信作者: 徐晓东,博士,教授。E-mail:xdxu79@jsnu.edu.cn;徐军,博士,教授。E-mail:15503@tongji.edu.cn
作者简介:郭俊(1994—),男,山西省人,硕士研究生。E-mail:1398075385@qq.com
基金资助:
国家自然科学基金(61975071)

Growth, Spectroscopic Properties and Laser Performance of Nd∶ASL Single Crystal Fibers

GUO Jun¹, LIU Jian¹, WANG Zebin¹, CHEN Peng¹, SONG Qingsong², MA Jie¹, WANG Qingguo², XU Xiaodong¹, XU Jun²

1. School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou 221116, China;
2. School of Physical Science and Engineering, Tongji University, Shanghai 200092, China

Received:2024-09-23 Online:2024-11-15 Published:2024-12-09

摘要/Abstract

摘要： 采用微下拉法制备了不同浓度Nd³⁺掺杂的Sr_0.7La_0.3Mg_0.3Al_11.7O₁₉ (Nd∶ASL)单晶光纤,并对其晶体结构、偏振光谱和连续激光性能进行了研究。计算得到Nd∶ASL单晶光纤的光谱参数 Ω₂、Ω₄和Ω₆分别为1.093×10^-20、2.285×10^-20和2.117×10^-20 cm²。0.5%、1.0%、3.0%和5.0%Nd∶ASL单晶光纤⁴F_3/2能级的荧光寿命分别为375、398、384和363 μs。采用发射波长800 nm的激光二极管泵浦3.0%Nd∶ASL (原子数分数)单晶光纤,在1 055 nm处获得了1.08 W的连续激光输出,斜效率为18.5%。研究结果表明采用微下拉生长的Nd∶ASL单晶光纤是一种有潜力的激光增益介质。

关键词: 微下拉法, 单晶光纤, Nd∶ASL, 晶体生长, 光谱性能, 激光性能

Abstract: Nd³⁺-doped Sr_0.7La_0.3Mg_0.3Al_11.7O₁₉ (Nd∶ASL) single crystal fibers with different Nd³⁺ concentration were successfully grown by the micro-pulling-down (μ-PD) method. The crystal structure, polarized spectroscopic properties and continuous wave laser performance were studied. The Judd-Ofelt parameters Ω₂, Ω₄ and Ω₆ are obtained to be 1.093×10^-20, 2.285×10^-20 and 2.117×10^-20 cm², respectively. The fluorescence lifetime of 0.5%, 1.0%, 3.0% and 5.0%Nd∶ASL single crystal fibers are 375,398,384 and 363 μs, respectively. A continuous wave laser is obtained by pumping with a commercial laser diode of 800 nm emission wavelength. The maximum output power is 1.08 W at 1 055 nm with a slope efficiency of 18.5%. All the results indicate that Nd³⁺-doped ASL single crystal fiber grown by the μ-PD method has potential as a laser gain medium for laser system.

Key words: micro-pulling-down method, single crystal fiber, Nd:ASL, crystal growth, spectral property, laser performance

中图分类号:

O78
TN253

郭俊, 刘坚, 王泽彬, 陈鹏, 宋青松, 马杰, 王庆国, 徐晓东, 徐军. Nd∶ASL单晶光纤的生长、光谱和激光性能研究[J]. 人工晶体学报, 2024, 53(11): 1877-1883.

GUO Jun, LIU Jian, WANG Zebin, CHEN Peng, SONG Qingsong, MA Jie, WANG Qingguo, XU Xiaodong, XU Jun. Growth, Spectroscopic Properties and Laser Performance of Nd∶ASL Single Crystal Fibers[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2024, 53(11): 1877-1883.

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Nd∶ASL单晶光纤的生长、光谱和激光性能研究

Growth, Spectroscopic Properties and Laser Performance of Nd∶ASL Single Crystal Fibers

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