Growth, spectroscopic, diode-pumped mid-infrared laser properties of Er:GSAG crystal
Growth, spectroscopic, diode-pumped mid-infrared laser properties of Er:GSAG crystal
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Er:GSAG 晶体的生长、光谱、二极管泵浦中红外激光特性
DOI：
10.1016/j.jallcom.2019.152267
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发表时间：
2020
影响因子：
6.2
通讯作者：
Shaotang Yin
中科院分区：
文献类型：
--
作者：
Yuanzhi Chen;Yi He;Qingli Zhang;Jiayue Xu;Zhongqing Fang;Shoujun Ding;Renqing Dou;Wenpeng Liu;Shaotang Yin
采用提拉法生长出了一种极具潜力的高光学质量重掺Er ~（3+）GSAG中红外激光晶体。用XRC法测定了Er：GSAG晶体的晶体质量。用X射线Rietveld方法计算了Er：GSAG晶体的结构参数（a = B = c = 12.3196？埃）。在961 nm和967 nm处的吸收截面分别为0.381 × 10（-21）cm（2）和0.414 × 10（-21）cm（2）。首次报道了962 nm激光二极管端面泵浦Er：GSAG激光器在2828 nm波长的运转。详细研究了Er：GSAG激光器的性能。当962 nm LD抽运Er：GSAG晶体，频率为300 Hz，时间为0.5 ms时，获得最大输出功率为410 mW，模拟结果表明Er：GSAG晶体的最高光斑温度为345.8 K，表明Er：GSAG晶体具有较小的热透镜效应。此外，通过不同剂量γ射线辐照Er：GSAG晶体的激光性能，研究了其在抗辐照环境中工作的潜力。结果表明，Er：GSAG晶体的激光性能差异相对较小，这表明Er：GSAG晶体在辐射环境中具有很大的应用潜力。(C)2019爱思唯尔B. V.保留所有权利。
A great potential mid-infrared laser crystal of heavily Er3+ doped GSAG crystal with high optical quality is successfully grown by Cz method. The crystal quality of Er:GSAG crystal is determined by XRC. The structure parameters of Er:GSAG crystal are obtained by the X-ray Rietveld refinement method (a = b = c = 12.3196?angstrom). The absorption cross section at 961 nm and 967 nm are 0.381 x 10(-21) cm(2) and 0.414 x 10(-21) cm(2), respectively. The 962 nm laser diode end-pumped Er:GSAG laser operated at 2828 nm is demonstrated for the first time. The performance of Er:GSAG laser is investigated in great detail. A maximum output power of Er:GSAG laser is 410 mW when pumped by 962 nm LD at 300 Hz and 0.5 ms. Simulating results display the highest temperatures of Er:GSAG laser spot is 345.8 K, indicating a small thermal lensing effect of Er:GSAG crystal. Besides, the laser performance of Er:GSAG crystals which irradiate by different doses of gamma-ray are used to investigated its potential for working in the radiation resistance environment. The results show the relatively minor differences on the Er:GSAG lasers performance, indicating a great potential of Er:GSAG crystal in radiant environment application. (C) 2019 Elsevier B.V. All rights reserved.