Yb:CaF2–YF3 transparent ceramics ultrafast laser at dual gain lines
Yb:CaF2–YF3 transparent ceramics ultrafast laser at dual gain lines
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Yb:CaF2–YF3 透明陶瓷超快激光器双增益线
DOI：
10.1088/1674-1056/ac720f
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发表时间：
2022
影响因子：
1.7
通讯作者：
Liangbi Su
中科院分区：
文献类型：
--
作者：
Xiaoqin Liu;Qianqian Hao;Jie Liu;Danhua Liu;Weiwei Li;Liangbi Su
采用热压法成功地制备了具有优良光学性能的Yb 3+：CaF 2-YF 3透明陶瓷。首次研究了该陶瓷的脉冲激光性能。采用半导体激光器（LD）作为泵浦源，实现了双波长锁模激光器。最大平均输出功率为310 mW，代表了超快氟化钙陶瓷激光器的最高输出功率。光谱在1048.9 nm和1049.7 nm处分离，总脉冲持续时间为8.9 ps。拍频信号之间的间隔周期约为4.3 ps，对应于0.23 THz拍频脉冲重复率。这些结果表明，它在产生双波长超短脉冲的潜力。这些Yb 3+：CaF 2-YF 3陶瓷具有成本低、制备周期短等优点，是超快激光器的理想候选材料。
Yb 3+: CaF 2–YF 3 transparent ceramics with excellent optical quality was successfully fabricated by hot-pressed method. Pulsed laser properties of this ceramics were investigated for the first time. Laser diode (LD) was applied as the pump source to generate a dual-wavelength mode-locked (ML) laser. The maximum average output power was 310 mW, which represents the highest output power of ultrafast calcium fluoride ceramic laser. The spectrum separated at 1048.9 nm and 1049.7 nm with a total pulse duration of 8.9 ps. The interval period between the beating signals was about 4.3 ps, corresponding to a 0.23 THz beat pulse repetition rate. These results demonstrate its potential in producing dual-wavelength ultrashort pulses. These Yb 3+: CaF 2–YF 3 ceramics with low-cost and short-preparation period are ideal candidate materials for ultrafast lasers.