Spectral and laser performance of a Tm3+:ScYSiO5 crystal
Spectral and laser performance of a Tm3+:ScYSiO5 crystal
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Tm3 :ScYSiO5 晶体的光谱和激光性能
DOI：
10.1016/j.jallcom.2017.04.099
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发表时间：
2017
影响因子：
6.2
通讯作者：
Ryba Romanowski Witold
中科院分区：
文献类型：
--
作者：
Yang Kejian;Feng Tianli;Zhao Shengzhi;Liu Cheng;Li Tao;Ma Weiwei;Zou Zhengting;Wang Qingguo;Su Liangbi;Solarz Piotr;Lisiecki Radoslaw;Komar Jaroslaw;Xu Jun;Zheng Lihe;Ryba Romanowski Witold
介绍了一种新型掺铥硅酸钪钇晶体 Tm3+:ScYSiO5(Tm:SYSO) 的光谱特征和激光性能。与 Tm3+ 的 3F4–3H6 激光跃迁相关的发光实验寿命为 1.1 ms，由于非辐射弛豫的贡献，该寿命比计算的辐射寿命值小三倍。由于SYSO主晶体的内部无序结构，3F4–3H6和3H4-3H6的发光带与SSO相比表现出显着的不均匀光谱展宽。使用连续波半导体激光器作为泵浦源，在端泵浦腔中评估激光器性能。在自由运行状态下，Tm:SYSO 激光器在 2022 nm 处提供 580 mW 的最大输出功率，对应于 17.4% 的斜率效率。将双折射石英板插入激光腔中，激光输出波长从 1950 nm 连续调谐到 2057 nm，并观察到 2011 nm 和 2020 nm、1987 nm 和 2045 nm、2022 nm 和 2044 nm 的双波长操作。
Spectroscopic features and laser performance of a novel thulium-doped scandium yttrium silicate crystal Tm3+:ScYSiO5(Tm:SYSO) are presented. The experimental lifetime of luminescence related to the3F4–3H6laser transition of Tm3+amounts to 1.1 ms, which is smaller by a factor of three than the calculated radiative lifetime value due to the contribution of nonradiative relaxation. As a consequence of the internal disordered structure of the SYSO host crystal, the luminescence bands of3F4–3H6and3H4-3H6show significant inhomogeneous spectral broadening as compared with that of SSO. The laser performances were evaluated in an end-pumped cavity using a CW semiconductor laser as a pump source. In a free run regime, the Tm:SYSO laser delivered a maximum output power of 580 mW at 2022 nm, corresponding to a slope efficiency of 17.4%. With a birefringent quartz plate inserted into laser cavity, the laser output wavelength was continuously tuned from 1950 nm to 2057 nm and dual wavelength operations at 2011 nm and 2020 nm, 1987 nm and 2045 nm, 2022 nm and 2044 nm were observed.