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硫系玻璃光纤因具有独特的红外光学特性,在红外成像、激光传输和传感等诸多领域具有广阔的应用前景。目前,硫系玻璃光纤的拉制方法主要包括双坩埚法和预制棒拉制法。其中,双坩埚法装置复杂,预制棒拉制法需要提前制备高质量的预制棒。此外,这两种方法均要求玻璃具有较高的抗析晶能力,限制了硫系玻璃光纤新材料的开发。本工作创新性地将脉冲喷射技术引入到硫系玻璃光纤制备领域,通过硫系玻璃光纤纤芯的拉制,探索该方法在玻璃光纤制备上的可行性。通过对玻璃熔体施加持续性的脉冲扰动,坩埚底部小孔处能产生连续的射流,并且在下落过程中发生凝固,从而获得玻璃纤芯。采用该方法,成功制备了一种组成为Ge28Sb12Se60的玻璃光纤纤芯。脉冲喷射法具有装置简单、操作容易等优点,通过连续且规律的脉冲和坩埚内外压力差实现硫系玻璃光纤的拉制,与传统依靠重力拉制的方法相比,脉冲喷射法具有更为丰富的调控手段,从而为新型硫系玻璃光纤的制备提供参考。 相似文献
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日本塑料光纤发展动向 总被引:4,自引:0,他引:4
日本塑料光纤发展动向黄汉生(武汉化工研究所,武昌430064)1光纤的分类光纤按使用的主要材料分为:石英玻璃系、多成分玻璃系、塑料系、氟化物玻璃系、硫化物玻璃系、卤化物结晶系光纤。目前实用光纤以前3类为主。光纤按波导结构分为:阶跃折射率(SI)型多模... 相似文献
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高纯透红外硫系玻璃材料的制备 总被引:5,自引:0,他引:5
高性能透红我硫系玻璃材料的开发和应用在很大程度上受到杂质对透过性能影响的制约。本综述系统地阐述了存在于不同硫系玻璃中的杂质之种类、来源、形成过程及其对玻璃透过性能的影响,并介绍了旨在有效地消除杂质、降低玻璃的非本质 原料纯化措施和与此相关的硫系玻璃制备新工艺。 相似文献
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硫系玻璃具有折射率温度系数低、透过谱段范围宽、光学均匀性好、性能可调和易于加工等优点,被视作新一代温度自适应红外热成像系统用核心元件材料,在红外追踪、红外制导、安防监控、辅助驾驶等多个领域具有广阔的应用前景。为了解决极端服役环境对红外材料的需求,硫系玻璃制备技术研究主要涉及以下三个方面:(1)设计开发大尺寸高纯硫系玻璃的制备方法;(2)进行气氛熔制技术探索研究以解决大尺寸硫系玻璃的工程应用需求;(3)将高能球磨、热压等方式引入到硫系玻璃陶瓷制备上,拓展红外光学材料可选范围,提升硫系玻璃极端环境适应能力。本文基于上述三个方面综述了红外硫系玻璃制备技术的研究进展。 相似文献
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Correlating Structure with Threshold Behavior of Chalcogenide Glasses Within Ge–Sn–Se Ternary System
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Beijing Qiao Feifei Chen Yicong Huang Ruiqiang Lin Xiaoyu Zhang Shixun Dai Xiang Shen Qiuhua Nie Xianghua Zhang 《Journal of the American Ceramic Society》2017,100(1):108-114
A systematic investigation of the optical and structural properties of chalcogenide glasses in Ge–Sn–Se ternary system is presented. We have found a threshold behavior of optical property, namely, existence of transitional composition of the Ge–Sn–Se glasses, with progressive replacement of Se by Sn. Calculation of mean coordination number indicates that the transition‐like feature of optical property is associated with the evolution of chemical ordering of the Ge–Sn–Se network. Analysis of Raman spectra of the glasses explains that the interaction between Se–Se bonds, Sn(Se1/2)4 tetrahedra, and Sn–Sn homopolar bonds is the origination of such optical phenomenon. 相似文献
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透红外硫系玻璃的被动及主动光学性能研究 总被引:2,自引:0,他引:2
概述了近期对透红外硫系玻璃的被动及主动光学性能和应用的研究工作,内容包括若干硫系玻璃新系统,硫系玻璃微晶化处理及性能改进,稀土离子和/或重金属离子掺杂硫系及硫卤玻璃的红外发光性能,硫卤玻璃的非线性光学效应,硫系玻璃的γ射线辐照效应等。 相似文献
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Jian Cui Yantao Xu Xusheng Xiao Xiaoxia Cui Chengzhen Liu Haitao Guo 《Journal of the American Ceramic Society》2023,106(2):941-950
Chlorine or chlorides are usually used as a dehydrating agent for removing the O-H or S(Se)-H in the preparation of high-purity chalcogenide glasses. However, the residual chlorine in some rare-earth ions doped chalcogenide glasses was found to have a great negative impact on fluorescence emission. In this work, the effect of residual chlorine on the fluorescence emission of Dy3+ ions in serial (Ge)GaAsSbS glasses was studied quantitatively, and the reasons were discussed. Cl2 gas and SbCl3 were used as the source of chlorine and their residual contents were controlled by the post-distillation process and added content, respectively. The results can give some suggestions for how to eliminate the negative effects of chlorine and improve the glass’ optical gain properties. 相似文献
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采用传统的熔融–淬冷法制备了系列GexTe65Se(35–x)(x=20,22,23,24;摩尔分数,x%)Te基硫系玻璃。利用X射线衍射、差示扫描量热分析、分光光度计、红外光谱仪等设备研究了玻璃的性能。这些玻璃具有良好的热稳定性和红外透过性能。组分为Ge23Te65Se12,Ge24Te65Se11的玻璃的差示扫描量热曲线中没有出现析晶峰,表明玻璃具有良好的抗析晶性能。组分为Ge24Te65Se11的玻璃的转变温度Tg最高,达到了188℃。这些玻璃样品的红外透过范围都很宽,从近红外的1.8μm到远红外的18μm。通过在玻璃的制备工艺中引入蒸馏提纯工艺可以有效减弱杂质吸收峰对玻璃红外透过性能的影响。最后,选用Ge23Te65Se12玻璃作为包层,Ge24Te65Se11玻璃作为纤芯,采用棒管法完成了具有纤芯包层结构的Ge-Te-Se红外光纤的拉制。 相似文献
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Jas S. Sanghera Vinh Q. Nguyen Ishwar D. Aggarwal 《Journal of the American Ceramic Society》1996,79(5):1324-1328
The physical and optical properties of glasses in the As40 S((60 -x:) Sex system where x = 0, 5,10,15, and 20 at. % Se have been investigated. The changes in the glass transition temperature, density, hardness, IR edge, and refractive index can be attributed to the presence of Se, which simply replaces S in these glasses. The glasses do not exhibit crystallization under the conditions used in this study, which is a desirable property from the viewpoint of flberization. Appropriate core and cladding glass compositions have been identified for fabrication of optical fibers with known numerical apertures. Furthermore, it has been shown that these glasses will not impart additional thermal or mechanical stresses in optical fibers made from these compositions. 相似文献
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Jean-Luc Adam Laurent Calvez Johann Trolès Virginie Nazabal 《International Journal of Applied Glass Science》2015,6(3):287-294
The last advances in the synthesis and shaping techniques of chalcogenide glasses suitable for infrared photonics are reported. Ball milling combined with spark plasma sintering allows the preparation of bulk chalcogenide glasses at lower temperature and at lower cost. Microstructuring of optical fibers results in enhanced nonlinear properties leading to the demonstration of low-threshold Brillouin laser at 1.55 μm, all-optical wavelength conversion and time-domain demultiplexing with a 170 Gb/s rate, and supercontinuum between 1.5 and 2.8 μm. The potential of integrated waveguides for functions such as near-IR sensing, mid-IR injection, and (bio)-chemical functionalization is shown. 相似文献
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Dy3+‐Doped Selenide Chalcogenide Glasses: Influence of Dy3+ Dopant‐Additive and Containment
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Zhuoqi Tang David Furniss Nigel C. Neate Emma Barney Trevor M. Benson Angela B. Seddon 《Journal of the American Ceramic Society》2016,99(7):2283-2291
This work reports on process‐induced impurities in rare‐earth ion: Dy3+‐doped selenide chalcogenide glasses, which are significant materials for active photonic devices in the mid‐infrared region. In particular, the effect of contamination from the silica glass ampoule containment used in chalcogenide glass synthesis is studied. Heat‐treating Dy‐foil‐only, and DyCl3‐only, separately, within evacuated silica glass ampoules gives direct evidence of silica ampoule corrosion by the rare‐earth additives. The presence of [Ga2Se3] associated with [Dy] on the silica glass ampoule that has been contact with the chalcogenide glass during glass melting, is reported for the first time. Studies of 0–3000 ppmw Dy3+‐doped Ge16.5As9Ga10Se64.5 glasses show that Dy‐foil is better than DyCl3 as the Dy3+ additive in Ge‐As‐Ga‐Se glass in aspects of avoiding bulk crystallization, improving glass surface quality and lowering optical loss. However, some limited Dy/Si/O related contamination is observed on the surfaces of Dy‐foil‐doped chalcogenide glasses, as found for DyCl3‐doped chalcogenide glasses, reported in our previous work. The surface contamination indicates the production of Dy2O3 and/or [≡Si‐O‐Dy=]‐containing particles during chalcogenide glass melting, which are potential light‐scattering centers in chalcogenide bulk glass and heterogeneous nucleation agents for α‐Ga2Se3 crystals. 相似文献
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Tunable absorption and photoluminescence (PL) of lead chalcogenide quantum dots (QDs) doped in glasses due to the quantum confinements effect have been actively investigated for application as saturable absorbers, laser sources, and fiber-optic amplifiers. Optical properties of QDs have been carefully monitored by controlling their sizes through heat treatment and rare-earth ion doping. Two- and three-dimensional precipitation of lead chalcogenide QDs were also realized using silver ion exchange and femtosecond laser irradiation in combination with thermal treatment. Prototypes of microstructured single-mode fibers and tapered fiber amplifiers containing QDs proved potentials of these materials for fiber-optic amplifiers application. Further research works on QD-doped solid core fibers, surface passivation of quantum dots and their application for the mid-infrared optical devices are necessary. 相似文献
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实验制备了Dy3+掺杂Ge-Ga-Se系统硫系玻璃样品,测试了玻璃的密度、显微硬度、可见-红外透射光谱、荧光光谱以及荧光寿命.根据玻璃的密度计算了玻璃的摩尔体积以及致密度.讨论了玻璃的这些性能随系统平均配位数<r>的变化关系.实验结果表明该系统中配位数大于2.67的玻璃在1.3 μm具有较好的发光性能,荧光寿命在440~530μs之间,当玻璃组成位于化学门槛即平均配位数为2.73时玻璃的发光强度最强. 相似文献
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Low Loss,High NA Chalcogenide Glass Fibers for Broadband Mid‐Infrared Supercontinuum Generation
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Bin Zhang Wei Guo Yi Yu Chengcheng Zhai Sisheng Qi Anping Yang Lei Li Zhiyong Yang Rongping Wang Dingyuan Tang Guangming Tao Barry Luther‐Davies 《Journal of the American Ceramic Society》2015,98(5):1389-1392
High‐purity Ge–As–Se and Ge–As–S chalcogenide glasses were prepared by modified physical and chemical purification techniques. Using the purified glasses, step‐index fibers with a small core (~5.5 μm) and large numerical aperture (~1.3) were fabricated. When a 13.5‐cm‐long fiber was pumped with 320 fs pulses at a repetition rate of 10.5 MHz at 4.1 μm, supercontinuum spanning from ~1.8 to ~9.8 μm with a dynamic range of ±10 dB and an average power of ~3 mW was generated. 相似文献