掺钕Sr3Y2(BO3)4晶体的偏振光谱特性及激光演示

Polarized spectral properties and laser demonstration of Nd-doped Sr3Y2(BO3)4 crystal.

作者信息

Pan Zhongben, Yu Haohai, Cong Hengjiang, Zhang Huaijin, Wang Jiyang, Wang Qing, Wei Zhiyi, Zhang Zhiguo, Boughton R I

机构信息

State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, China.

出版信息

Appl Opt. 2012 Oct 20;51(30):7144-9. doi: 10.1364/AO.51.007144.

DOI:10.1364/AO.51.007144

PMID:23089764

Abstract

Detailed polarized spectral properties of a 0.685 at. % Nd(3+):Sr(3)Y(2)(BO(3))(4) crystal grown by the Czochralski method have been investigated, including the absorption cross section, the emission cross section, and the fluorescence lifetime. The anisotropy of the spectral properties in different polarized directions was discussed thoroughly. The absorption and emission spectra of Nd(3+) are found to be inhomogeneously broadened due to its internal disordered lattice. Additionally, the CW laser operation at 1.06 μm was also demonstrated for the first time. The maximum output power of 905 mW was achieved, with corresponding optical conversion efficiency of 10.8% and slope efficiency of 12.8%.

摘要

研究了用提拉法生长的0.685原子百分比的Nd(3+):Sr(3)Y(2)(BO(3))(4)晶体的详细偏振光谱特性，包括吸收截面、发射截面和荧光寿命。深入讨论了不同偏振方向上光谱特性的各向异性。发现Nd(3+)的吸收和发射光谱由于其内部无序晶格而呈现非均匀展宽。此外，首次展示了该晶体在1.06μm波长的连续波激光运转。获得了905mW的最大输出功率，相应的光转换效率为10.8%，斜率效率为12.8%。