Yb3+-doped CaF2-LaF3 ceramics laser.
Yb3+-doped CaF2-LaF3 ceramics laser.
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DOI：
10.1364/ol.42.001724
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发表时间：
2017-05
期刊：
影响因子：
3.6
通讯作者：
S. Kitajima;Kentaro Yamakado;A. Shirakawa;K. Ueda;Yoshinobu Ezura;H. Ishizawa
中科院分区：
文献类型：
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作者：
S. Kitajima;Kentaro Yamakado;A. Shirakawa;K. Ueda;Yoshinobu Ezura;H. Ishizawa
高透明陶瓷由于其高断裂韧性、均匀性和尺寸可扩展性而成为高功率激光器的有吸引力的增益介质。在这里，我们报道了第一个掺Yb 3+的CaF 2-LaF 3陶瓷激光器。La ~（3+）离子的共掺杂可以减少Yb ~（2+）离子的形成，提高激光效率。在激光器实验中，分别采用3% La，2% Yb和2% La，1% Yb的样品获得了4.36 W的最大输出功率和69.5%的最大斜率效率。Yb：CaF 2-LaF 3陶瓷由于具有Yb：CaF 2和陶瓷激光增益介质的综合性能，在高功率超短脉冲激光器和放大器中是一种很有前途的增益介质。
Highly transparent ceramic is an attractive gain medium for high-power lasers due to its high fracture toughness, homogeneity, and size scalability. Here we report the first Yb3+-doped CaF2-LaF3 ceramics laser. Codoping of La3+ ion can reduce the formation of Yb2+ ions and enhance the laser efficiency. In the laser experiment, the maximum output power of 4.36 W and the maximum slope efficiency of 69.5% were obtained with a 3% La, 2% Yb sample and a 2% La, 1% Yb sample, respectively. Due to the combined properties of Yb:CaF2 and a ceramic laser gain medium, Yb:CaF2-LaF3 ceramic is a promising gain medium for a high-power ultrashort pulse laser and amplifier.