Effect of BaF2 and Y2O3 on the Raman scattering characteristics of fluorotellurite glasses

IF 2.8 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Express Pub Date : 2023-12-07 DOI:10.1364/ome.506523

Qian Zhang, Yadong Jiao, Zhixu Jia, Lili Wang, Weiping Qin, and Guanshi Qin

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Abstract

In this letter, we investigated the Raman scattering characteristics of a series of aTeO₂-(90-a)BaF₂-10Y₂O₃ (a = 85, 80, 75, 70, 65, 60, 55 mol%), bTeO₂-(95-b)BaF₂-5Y₂O₃ (b = 90, 85, 80, 75, 70, 65, 60, 55, 50 mol%) and cTeO₂-(100-c)BaF₂ (c = 95, 90, 85, 80, 75, 70, 65, 60 mol%) fluorotellurite glasses. With increasing the concentration of BaF₂, the peak Raman gain coefficient at 785 cm⁻¹ increased while the Raman gain bandwidth (full spectral width at half maximum of the Raman peaks around 785 cm⁻¹) decreased, which was attributed to the increasing proportion of non-bridge oxygen bonds in the fluorotellurite glass systems. The same results were also observed for the case of the increasing of the concentration of Y₂O₃. In these samples, the 50TeO₂-40BaF₂-10Y₂O₃ glass has the largest Raman gain coefficient of 29.9 × 10⁻¹³ m/W, and the 95TeO₂-5BaF₂ glass has the widest Raman gain bandwidth of 7.35 THz for the pumping laser at 633 nm. Furthermore, the first-order Raman Stokes light peaked at ∼2373 nm was obtained by using fluorotellurite fiber based on the above glasses as Raman gain medium and a 2000nm picoseconds laser as pump light. Our results provide guidance for further improving the performance of Raman fiber lasers or amplifiers based on fluorotellurite fibers.

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BaF2 和 Y2O3 对氟铁榴石玻璃拉曼散射特性的影响

在这封信中，我们研究了一系列 aTeO2-(90-a)BaF2-10Y2O3（a = 85、80、75、70、65、60、55 摩尔%）的拉曼散射特性、bTeO2-(95-b)BaF2-5Y2O3 (b = 90、85、80、75、70、65、60、55、50 摩尔%) 和 cTeO2-(100-c)BaF2 (c = 95、90、85、80、75、70、65、60 摩尔%) 萤石玻璃。随着 BaF2 浓度的增加，785 cm-1 处的拉曼增益系数峰值增大，而拉曼增益带宽（785 cm-1 附近拉曼峰值的半最大全谱宽）减小，这归因于氟碲玻璃体系中的非桥氧键比例增加。在增加 Y2O3 浓度的情况下也观察到了同样的结果。在这些样品中，50TeO2-40BaF2-10Y2O3 玻璃的拉曼增益系数最大，为 29.9 × 10-13 m/W，而 95TeO2-5BaF2 玻璃在 633 nm 波长泵浦激光下的拉曼增益带宽最宽，为 7.35 THz。此外，以上述玻璃为基础的氟碲玻璃纤维作为拉曼增益介质，以 2000nm 皮秒激光作为泵浦光，可获得峰值为 ∼2373 nm 的一阶拉曼斯托克斯光。我们的研究结果为进一步提高基于荧光玻璃光纤的拉曼光纤激光器或放大器的性能提供了指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optical Materials Express MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

5.50

自引率

3.60%

发文量

377

审稿时长

1.5 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optical Materials Express (OMEx), OSA''s open-access, rapid-review journal, primarily emphasizes advances in both conventional and novel optical materials, their properties, theory and modeling, synthesis and fabrication approaches for optics and photonics; how such materials contribute to novel optical behavior; and how they enable new or improved optical devices. The journal covers a full range of topics, including, but not limited to: Artificially engineered optical structures Biomaterials Optical detector materials Optical storage media Materials for integrated optics Nonlinear optical materials Laser materials Metamaterials Nanomaterials Organics and polymers Soft materials IR materials Materials for fiber optics Hybrid technologies Materials for quantum photonics Optical Materials Express considers original research articles, feature issue contributions, invited reviews, and comments on published articles. The Journal also publishes occasional short, timely opinion articles from experts and thought-leaders in the field on current or emerging topic areas that are generating significant interest.