Er3+,Yb3+∶Ba3Gd(PO4)3晶体的生长、光谱和1.5 μm激光性能

人工晶体学报 ›› 2023, Vol. 52 ›› Issue (7): 1286-1295.

• 激光与非线性光学晶体高通量制备与表征 • 上一篇下一篇

Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃晶体的生长、光谱和1.5 μm激光性能

黄建华¹, 吴杰^1,2, 黄艺东¹, 林炎富¹, 龚兴红¹, 陈雨金¹

1.中国科学院福建物质结构研究所,光电材料化学与物理重点实验室,福州 350002;
2.中国科学院大学物理科学学院,北京 100049

收稿日期:2023-04-23 出版日期:2023-07-15 发布日期:2023-08-16
通信作者: 黄艺东,博士,研究员。E-mail:huyd@fjirsm.ac.cn
陈雨金,博士,研究员。E-mail:cyj@fjirsm.ac.cn
作者简介:黄建华(1980—),男,江西省人,博士,副研究员。E-mail:huangjh@fjirsm.ac.cn
基金资助:
国家重点研发计划(2021YFB3601504);国家自然科学基金(52272010)

Growth, Spectroscopic and 1.5 μm Laser Properties of Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃ Crystals

HUANG Jianhua¹, WU Jie^1,2, HUANG Yidong¹, LIN Yanfu¹, GONG Xinghong¹, CHEN Yujin¹

1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China;
2. College of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China

Received:2023-04-23 Online:2023-07-15 Published:2023-08-16

摘要/Abstract

摘要： 采用提拉法生长了1.85%Er,23.95%Yb∶Ba₃Gd(PO₄)₃和1.95%Er,55.73%Yb∶Ba₃Gd(PO₄)₃两种晶体(式中Er、Yb浓度为原子数分数)。测量并分析了晶体在室温下的吸收系数谱、上转换荧光谱、发射截面谱、增益截面谱和荧光衰减曲线。1.85%Er,23.95%Yb∶Ba₃Gd(PO₄)₃晶体在峰值荧光波长1 537 nm处的发射截面、Er³⁺的⁴I_13/2多重态荧光寿命和Yb³⁺→Er³⁺的能量传递效率分别为0.54×10^-20 cm²、9.9 ms和90%;1.95%Er,55.73%Yb∶Ba₃Gd(PO₄)₃晶体在峰值荧光波长1 537 nm处的发射截面、Er³⁺的⁴I_13/2多重态荧光寿命和Yb³⁺→Er³⁺的能量传递效率则分别为0.58×10^-20 cm²、9.7 ms和93%。基于975 nm半导体激光端面泵浦,在1.85%Er,23.95%Yb∶Ba₃Gd(PO₄)₃晶体中实现了97 mW最高功率和27.1%斜效率的1 567 nm连续激光输出,在1.95%Er,55.73%Yb∶Ba₃Gd(PO₄)₃晶体中实现了93 mW最高功率和17.1%斜效率的1 567 nm连续激光输出。

关键词: 人眼安全1.5 μm激光, 激光晶体, Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃晶体, 提拉法, 光谱性能, 连续激光性能

Abstract: Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃ crystals with different atomic fractions of Er³⁺ and Yb³⁺, i.e. 1.85%Er,23.95%Yb∶Ba₃Gd(PO₄)₃ and 1.95%Er,55.73%Yb∶Ba₃Gd(PO₄)₃ were successfully grown by the Czochralski method. Room-temperature absorption coefficient spectra, up-conversion fluorescence spectra, emission cross-section spectra, gain cross-section spectra and fluorscence decay curves of the crystals were measured and analyzed. Emission cross-section at peak fluorescence wavelength of 1 537 nm, fluorescence lifetime of the ⁴I_13/2 multiplet of Er³⁺ and Yb³⁺→Er³⁺ energy transfer efficienecy of the 1.85%Er,23.95%Yb∶Ba₃Gd(PO₄)₃ crystal are 0.54×10^-20 cm², 9.9 ms and 90%, respectively, while the above values of the 1.95%Er,55.73%Yb∶Ba₃Gd(PO₄)₃ crystal are 0.58×10^-20 cm², 9.7 ms and 93%, respectively. End-pumped by 975 nm laser diode, 1 567 nm continuous-wave laser with maximum output power of 97 mW and slope efficiency of 27.1% is obtained in the 1.85%Er,23.95%Yb∶Ba₃Gd(PO₄)₃ crystal, while 1 567 nm continuous-wave laser with maximum output power of 93 mW and slope efficiency of 17.1% is obtained in the 1.95%Er,55.73%Yb∶Ba₃Gd(PO₄)₃ crystal.

Key words: eye-safe 1.5 μm laser, laser crystal, Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃ crystal, Czochralski method, spectroscopic property, continuous-wave laser performance

中图分类号:

O78
O734

黄建华, 吴杰, 黄艺东, 林炎富, 龚兴红, 陈雨金. Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃晶体的生长、光谱和1.5 μm激光性能[J]. 人工晶体学报, 2023, 52(7): 1286-1295.

HUANG Jianhua, WU Jie, HUANG Yidong, LIN Yanfu, GONG Xinghong, CHEN Yujin. Growth, Spectroscopic and 1.5 μm Laser Properties of Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃ Crystals[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2023, 52(7): 1286-1295.

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Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃晶体的生长、光谱和1.5 μm激光性能

Growth, Spectroscopic and 1.5 μm Laser Properties of Er³⁺,Yb³⁺∶Ba₃Gd(PO₄)₃ Crystals

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