| Nb2O5对Nd3+掺杂锗酸盐玻璃光谱性能的影响 |
| |
| 引用本文： | 蒋晓琦,孙焰,王亚飞,王欣,陈树彬,胡丽丽,师彦春,郭爱民.Nb2O5对Nd3+掺杂锗酸盐玻璃光谱性能的影响[J].硅酸盐通报,2022,41(11):3768-3776. |
| |
| 作者姓名： | 蒋晓琦 孙焰 王亚飞 王欣 陈树彬 胡丽丽 师彦春 郭爱民 |
| |
| 作者单位： | 1.中国科学院上海光学精密机械研究所,高功率激光单元技术实验室,上海 201800; 2.上海大学,材料科学与工程学院,上海 201900; 3.中信金属股份有限公司,北京 100004 |
| |
| 基金项目： | 中信铌钢发展奖励基金(2021310034000559) |
| |
| 摘 要： | 蓝光激光器在彩色激光显示、高密度光储存、海洋资源探测、水下通信以及生物科技等领域具有广泛的应用前景。目前较为成熟的Yb3+掺杂光纤激光器倍频后仅能获得~490 nm蓝绿光,因此如何得到接近450 nm的纯蓝光激光器是目前急需解决的问题。Nd3+:4F3/2→4I9/2能级跃迁产生的0.9 μm光经倍频后可获得~450 nm光,并可应用于蓝光激光器,但该跃迁产生的光所占荧光分支比较低。本文系统研究了1%(质量分数)Nd2O3掺杂50GeO2-(20-x)PbO-15BaO-15ZnO-xNb2O5(x%=0%,2.5%,5%,10%,15%,摩尔分数)玻璃的吸收光谱、荧光光谱和荧光寿命,计算了相应的Judd-Ofelt强度参数以及增益带宽。研究发现,Nb2O5的加入会使Nd3+在900 nm荧光峰的吸收截面、发射截面、有效线宽和荧光分支比增加。当Nb2O5浓度为10%(摩尔分数)时,Judd-Ofelt强度参数Ω2=5.91×10-20 cm2,光谱质量参数χ=1.01,荧光分支比为42.9%。综上所述,Nb2O5能提高Nd3+ 0.9 μm的荧光分支比,从而倍频获得纯蓝光(450 nm),有利于蓝光激光器的发展及应用。
|
| 关 键 词： | Nd3+ Nb2O5浓度 锗酸盐玻璃 光谱特性 Judd-Ofelt强度参数 ~0.9 μm荧光 |
| 收稿时间： | 2022-08-16 |
Effect of Nb2O5 on Spectral Properties of Nd3+ Doped Germanate Glass |
| |
| JIANG Xiaoqi,SUN Yan,WANG Yafei,WANG Xin,CHEN Shubin,HU Lili,SHI Yanchun,GUO Aimin.Effect of Nb2O5 on Spectral Properties of Nd3+ Doped Germanate Glass[J].Bulletin of the Chinese Ceramic Society,2022,41(11):3768-3776. |
| |
| Authors: | JIANG Xiaoqi SUN Yan WANG Yafei WANG Xin CHEN Shubin HU Lili SHI Yanchun GUO Aimin |
| |
| Affiliation: | 1. Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China; 2. School of Materials Science and Engineering, Shanghai University, Shanghai 201900, China; 3. Citic Metal Co., Ltd., Beijing 100004, China |
| |
| Abstract: | Blue laser has a wide range of application prospects in the fields of color laser display, high-density optical storage, exploration of marine resource, underwater communication and biomedical sciences, etc. However, the relatively mature Yb3+ doped fiber laser can only obtain blue green (~490 nm) laser after frequency doubling. Therefore, it is an urgent issue to obtain a pure blue laser close to 450 nm. The 0.9 μm fluorescence generated by the 4F3/2→4I9/2 level transition of Nd3+ can obtain the pure blue laser output of ~450 nm after frequency doubling, which has excellent application potential in the field of blue laser. However, the fluorescence generated by this transition occupies a low fluorescence branching raito. In this paper, the absorption spectrum, fluorescence spectrum and fluorescence lifetime of 1% (mass fraction) Nd2O3 doped 50GeO2-(20-x)PbO-15BaO-15ZnO-xNb2O5 (x%=0%, 2.5%, 5%, 10%, 15%,mole fraction) glass were systematically studied, and the corresponding Judd-Ofelt intensity parameters and gain bandwidth were calculated. It is found that the 900 nm absorption cross section, emission cross section, effective linewidth and fluorescence branching ratio of Nd3+ increase with the doping of Nb2O5. When the concentration of Nb2O5 is 10% (mole fraction), Judd-Ofelt intensity parameter Ω2=5.91×10-20 cm2, the spectral quality parameter χ=1.01, and the fluorescence branching ratio is 42.9%. In summary, 0.9 μm fluorescence branching ratio of Nd3+ can be raised by Nb2O5, so as to obtain pure blue light (450 nm) by frequency doubling, which is beneficial to the development and application of blue laser. |
| |
| Keywords: | Nd3+ Nb2O5 concentration germanate glass spectral property Judd-Ofelt intensity parameter ~0 9 μm fluorescence |
|
| 点击此处可从《硅酸盐通报》浏览原始摘要信息 |
|
点击此处可从《硅酸盐通报》下载全文 |
|
