Regulating emission in Er doped silicate glass and fiber via coordination engineering

IF 8.4 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Journal of Materiomics Pub Date : 2025-04-01 DOI:10.1016/j.jmat.2025.101057

Yuqing Li, Yan Sun, Xin Wang, Fangling Jiang, Feimei Wang, Lu Deng, Xinyu Liu, Chunlei Yu, Lili Hu, Shubin Chen

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引用次数: 0

Abstract

L-band Er doped fiber (EDF) laser sources are in great demand for extending communication bandwidth. However, the gain performance is limited by the low emission cross section (σ_e) of Er³⁺ at wavelengths longer than 1590 nm. In our study, we revealed the mechanism of regulating Er emission behavior in silicate glass, and provided a linear model to predict the σ_e of Er-doped silicate glass with R²=92.3%. The σ_e1600 was increased to 23.5×10^‒22 cm² through erbium coordination engineering. Results were elucidated using X-ray absorption fine structure (XAFS) spectra, molecular dynamics (MD) simulations and fluorescence. Furthermore, this work validates this model in Er doped silicate fibers and obtained >20 dB amplification in the range of 1585‒1625 nm. This coordination engineering shows significant potential in applications of Er-doped silicate glasses and fibers. It provides an attractive prospect for expanding communication bandwidth by efficiently manipulating the emission of erbium to cover long wavelength.

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通过配位工程调节掺铒硅酸盐玻璃和光纤的发射

l波段掺铒光纤（EDF）激光源在扩展通信带宽方面有很大的需求。然而，Er3+在波长大于1590 nm时的低发射截面（σe）限制了其增益性能。在本研究中，我们揭示了调控Er在硅酸盐玻璃中的发射行为的机理，并建立了预测掺铒硅酸盐玻璃的σe的线性模型，其R2=92.3%。通过配铒工程使σe1600提高到23.5×10-22 cm2。利用x射线吸收精细结构（XAFS）光谱、分子动力学（MD）模拟和荧光对结果进行了分析。此外，本工作在掺铒硅酸盐纤维中验证了该模型，并在1585-1625 nm范围内获得了20 dB的放大。这种配位工程在掺铒硅酸盐玻璃和纤维的应用中具有重要的潜力。通过有效地控制铒的发射以覆盖长波长，为扩大通信带宽提供了诱人的前景。

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来源期刊

Journal of Materiomics Materials Science-Metals and Alloys

CiteScore

14.30

自引率

6.40%

发文量

331

审稿时长

37 days

期刊介绍： The Journal of Materiomics is a peer-reviewed open-access journal that aims to serve as a forum for the continuous dissemination of research within the field of materials science. It particularly emphasizes systematic studies on the relationships between composition, processing, structure, property, and performance of advanced materials. The journal is supported by the Chinese Ceramic Society and is indexed in SCIE and Scopus. It is commonly referred to as J Materiomics.