低损耗Ge-As-Se-Te硫系玻璃远红外光纤的性能分析

发布时间：2018-03-25 17:24

本文选题：GeAsSeTe　切入点：硫系玻璃　出处：《物理学报》2016年12期

【摘要】：中、远红外光学领域的发展,离不开低损耗光波导材料的发展,因此近年来远红外低损耗光纤一直是光学领域的热点之一.本论文在国内首次报道了一种基于挤压法的低损耗远红外光纤制备技术,获得了具有完整结构的远红外光纤,其损耗为:0.46 d B/m@8.7μm,1.31 d B/m@10.6μm,整体低于1 dB/m@7.2—10.3μm.在实验过程中,首先采用传统的熔融淬冷法和蒸馏纯化工艺制备了Ge-As-Se-Te玻璃样品.利用X射线衍射仪和热膨胀仪等测试了玻璃的结构和物理性质,分析了Ge对玻璃热学性质的影响;利用分光光度计、红外光谱仪等研究了玻璃的光谱性质;综合比较了还原剂铝、镁的除氧效果.最后采用挤压法制备了芯包结构光纤.实验结果表明:镁的除氧效果佳,新型挤压制备工艺和有效提纯技术共同推进了硫系光纤损耗的降低,所获得的Ge-As-Se-Te光纤具有远红外广谱应用的潜能(其透光波长接近12μm).
[Abstract]:The development of far-infrared optics is inseparable from the development of low-loss optical waveguide materials. In recent years, far infrared and low loss optical fiber has been one of the hot spots in the optical field. In this paper, the fabrication technology of low loss far infrared fiber based on extrusion method has been reported for the first time in China, and a complete structure of far infrared fiber has been obtained. The loss is 1: 0. 46 d B/m@8.7 渭 m, 1. 31 d B/m@10.6 渭 m, and less than 1 dB/m@7.2-10.3 渭 m. Ge-As-Se-Te glass samples were prepared by conventional melt quenching and distillation purification process. The structure and physical properties of glass were measured by X-ray diffractometer and thermal expansion apparatus. The effect of GE on the thermal properties of glass was analyzed. The spectral properties of glass were studied by spectrophotometer and infrared spectrometer, and the deoxygenation effects of reducing agents aluminum and magnesium were compared synthetically. Finally, core-clad fiber was prepared by extrusion method. The experimental results showed that the oxygen removal effect of magnesium was good. The new extrusion technology and the effective purification technology promote the reduction of the loss of sulfur fiber. The obtained Ge-As-Se-Te fiber has the potential of far-infrared wide spectrum application (its transmittance wavelength is close to 12 渭 m).
【作者单位】：宁波大学信息科学与工程学院高等技术研究院
【基金】：国家自然科学基金(批准号:61377099,61177087,61307060) 浙江省重中之重学科开放基金(批准号:xkxl1508,xkxl1318) 教育部新世纪优秀人才支持计划(批准号:NCET-10-0976) 浙江省151人才第三层次宁波大学王宽诚幸福基金资助的课题~~
【分类号】：TN253

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