镱：钇钪镓石榴石晶体的光谱及激光特性研究

Spectral and lasing investigations of Yb:YSGG crystal.

作者信息

Wang Shuxian, Wu Kui, Wang Yicheng, Yu Haohai, Zhang Huaijin, Tian Xueping, Dai Qibiao, Liu Junhai

机构信息

State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, China.

出版信息

Opt Express. 2013 Jul 15;21(14):16305-10. doi: 10.1364/OE.21.016305.

DOI:10.1364/OE.21.016305

PMID:23938482

Abstract

We report on a systematic study of the absorption and emission spectral properties of (Yb(0.1)Y(0.9))(3)(Sc(1.5)Ga(0.5))Ga(3)O(12) (Yb:YSGG) crystals. The broad fluorescence spectral lines indicate great potential of Yb:YSGG for tunable and ultrafast laser applications. Efficient continuous-wave (cw) laser oscillation was also demonstrated at room temperature (RT), generating an output power of 6.11 W with an optical-to-optical efficiency of 64.2%, and a slope efficiency of 80.1% with respect to absorbed pump power. The laser emission spectrum shifts to shorter wavelengths as the transmission of the output coupler varies from 3% to 20%, a result that can be explained based on the effective gain cross-sections of Yb:YSGG.

摘要

我们报道了对(Yb(0.1)Y(0.9))(3)(Sc(1.5)Ga(0.5))Ga(3)O(12)（Yb:YSGG）晶体吸收和发射光谱特性的系统研究。宽荧光谱线表明Yb:YSGG在可调谐和超快激光应用方面具有巨大潜力。在室温（RT）下也实现了高效连续波（cw）激光振荡，输出功率为6.11 W，光光效率为64.2%，相对于吸收泵浦功率的斜率效率为80.1%。随着输出耦合器的透过率从3%变化到20%，激光发射光谱向更短波长移动，这一结果可基于Yb:YSGG的有效增益截面来解释。