激光器
Crystal(编程语言)
光谱学
材料科学
人口倒转
红外线的
分析化学(期刊)
直拉法
晶体生长
红外光谱学
远红外激光器
边坡效率
光学
光电子学
化学
兴奋剂
光纤激光器
结晶学
物理
量子力学
计算机科学
程序设计语言
有机化学
色谱法
作者
Cong Quan,Dunlu Sun,Huili Zhang,Jianqiao Luo,Lunzhen Hu,Zhiyuan Han,Yang Qiao,Kunpeng Dong,Yuwei Chen,Maojie Cheng
标识
DOI:10.1016/j.jlumin.2022.119122
摘要
Er3+-doped YAP crystals with concentrations of 5 at%, 10 at%, 15 at% and 20 at% were grown successfully by Czochralski method. X-ray rocking curves suggest high crystalline quality. Lifetime ratio of 4I13/2 and 4I11/2 levels decreases obviously with the increase of Er3+ concentrations, which is beneficial to realize population inversion and decrease the laser threshold. Spectroscopy and laser show the 15 at% Er:YAP crystal has strongest mid-infrared fluorescence intensity and best laser performance by 968-nm LD side-pumping. Maximum average powers of 23.52 and 11.08 W are achieved at 250 and 1000 Hz, corresponding to the slope efficiency of 12.0% and 6.2%, respectively. Therefore, the 15 at% Er:YAP crystal is a promising candidate for the high-power and high-frequency mid-infrared laser.
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