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1.山东大学 信息科学与工程学院, 山东 青岛 266237
2.山东大学 晶体材料国家重点实验室, 山东 济南 250100
3.山东大学 激光与红外系统集成技术教育部重点实验室, 山东 青岛 266237
[ "张萌(1997-),女,河南郑州人,硕士研究生,2019年于青岛科技大学获得学士学位,主要从事中红外固体激光器的研究。E-mail: 202012728@mail.sdu.edu.cn" ]
[ "王贵吉(1995-),男,山东日照人,博士研究生,2018年于湘潭大学获得学士学位,主要从事倍半氧化物晶体的生长表征与稀土掺杂光谱性能的研究。 E-mail: wgj@mail.sdu.edu.cn" ]
[ "尹延如(1988-),女,山东济南人,博士,实验师,硕士生导师,2017年于山东大学晶体材料研究所获得博士学位,主要从事晶体生长及激光性能方面的研究。E-mail: yyr@sdu.edu.cn" ]
收稿日期:2022-09-05,
修回日期:2022-09-26,
纸质出版日期:2023-02-05
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张萌,王贵吉,梁洋洋等.导模法生长Er∶Lu2O3连续激光特性[J].发光学报,2023,44(02):240-245.
ZHANG Meng,WANG Guiji,LIANG Yangyang,et al.Continuous-wave Laser Properties of Er∶Lu2O3 Crystal Grown by EFG Method[J].Chinese Journal of Luminescence,2023,44(02):240-245.
张萌,王贵吉,梁洋洋等.导模法生长Er∶Lu2O3连续激光特性[J].发光学报,2023,44(02):240-245. DOI: 10.37188/CJL.20220324.
ZHANG Meng,WANG Guiji,LIANG Yangyang,et al.Continuous-wave Laser Properties of Er∶Lu2O3 Crystal Grown by EFG Method[J].Chinese Journal of Luminescence,2023,44(02):240-245. DOI: 10.37188/CJL.20220324.
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2.85 μm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 2.85 μm 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.
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