摘要
导模法是一种超高熔点晶体的有效生长方法,可以生长高质量、大尺寸、高掺杂的Er:Lu_(2)O_(3)晶体。本文测试了导模法生长的Er:Lu_(2)O_(3)晶体的荧光发射谱及连续激光特性,在室温下获得了斜效率为23.1%的2.85μm连续激光输出,最高输出功率5.24 W。80 min功率RMS(Root mean square)稳定性优于1.4%,不同输出功率水平的激光光束质量M^(2)因子优于2.17。实验结果表明,导模法生长的Er:Lu_(2)O_(3)激光晶体具备输出高功率、高效率中红外激光的能力。
As an excellent crystal growth method,the EFG(Edge-defined film-fed growth)method is excepted to grow Er:Lu_(2)O_(3)crystal with high quality,large size and high doping concentrations.In this letter,the fluorescence spectrum and continuous-wave(CW)laser performances of Er:Lu_(2)O_(3)crystal grown by EFG method have been characterized.A 2.85μm CW laser with a slope efficiency of 23.1%was realized at room temperature,and the maximum output power was 5.24 W.The RMS(Root mean square)power stability is better than 1.4%during 80 min,and the M^(2)factor of laser beam quality at different power levels is better than 2.17.The experimental results demonstrate that Er:Lu_(2)O_(3)laser gain medium grown by EFG method has the ability to generate high output power and high efficiency mid-infrared laser.
作者
张萌
王贵吉
梁洋洋
苏纯云
贾文增
尹延如
李涛
ZHANG Meng;WANG Guiji;LIANG Yangyang;SU Chunyun;JIA Wenzeng;YIN Yanru;LI Tao(School of Information Science and Engineering,Shandong University,Qingdao 266237,China;State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China;Key Laboratory of Laser&Infrared System(Shandong University),Ministry of Education,Qingdao 266237,China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2023年第2期240-245,共6页
Chinese Journal of Luminescence
基金
国家自然科学基金(62105181,62175132)
山东省自然科学基金(ZR2020MF116)。
