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D型微孔单模光纤的研制 总被引:1,自引:1,他引:1
本文首次报道了采用MCVD工艺和冷加工方法制作的D型微孔单模光纤的研制方法及光纤的性能参数,光纤的工作波长为1.3μm,具有不同的纤芯到微孔平面的距离,其中一根的距离已接近于零,损耗仅为5.64dB/km。 相似文献
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提出了在线近红外光纤光谱传感方法,研制了光纤光谱传感器,对塑料发泡挤出过程参数(CO2气体浓度)进行在线检测实验,并对光谱数据进行分析与处理.其结果是令人满意的.
理论与实验研究表明,本文提出的在线近红外光谱光纤传感方法很好地解决了聚合物动态挤出过程中参数的实时在线检测问题,通过光谱分析,研究微孔塑料的发泡成核机理,揭示其成核过程,从而能监控聚合物动态挤出成型过程. 用该方法实现的微孔塑料实时在线光纤光谱传感检测系统,具有重要的理论与实际意义.(PD7) 相似文献
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研究了157 nm激光刻蚀光纤三维微结构的基本性能。实验结果表明,石英材料的刻蚀率随脉冲数的增加呈下降的趋势,大光斑的刻蚀率高于同等条件下小光斑的刻蚀率。为提高微孔加工的质量,脉冲频率不宜高于25 Hz。 相似文献
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随着光纤网络的快速增长,光纤技术的发展越来越重要。光子晶体光纤是一种新型光纤,它将会极大地影响光通信的发展,为此对传统光纤进行了分析,对光子晶体光纤的性质和应用前景也进行了讨论和评价。 相似文献
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《Optical Fiber Technology》2013,19(5):432-436
Reported here is a straight-forward and flexible method to fabricate silica optical fibers of circular cladding cross-section and rectilinear cores whose aspect ratio and refractive index profile changes with position along the fiber in a deterministic way. Specifically, a modification to the process recently developed to produce longitudinally-graded optical fibers, LGFs [Opt. Express 20 (2012) 17394–17402], was employed. Herein reported are MCVD-derived germanosilicate fibers with rectangular cores where the aspect ratio changes by nearly 200% and the average refractive index changed by about 5%. Fiber losses were measured to be about 50 dB/km. Such rectangular core fibers are useful for a variety of telecommunication and biomedical applications and the dimensional and optical chirp provides a deterministic way to control further the modal properties of the fiber. 相似文献
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J. Ballato T. Hawkins P. Foy B. Yazgan-Kokuoz C. McMillen L. Burka S. Morris R. Stolen R. Rice 《Optical Fiber Technology》2010,16(6):399-408
Presented here is a review of recent progress in the nascent field of glass-clad semiconductor core optical fibers. Such fibers, generally focused to-date on silicon and germanium cores, define a new class of optical fibers that have the potential to significantly advance the fields of nonlinear fiber optics and infrared power delivery. They also can provide considerable insight into the fundamentals of crystal growth and the interplay between thermodynamics and kinetics under non-equilibrium conditions. More specifically, this review begins with a brief history of the international efforts to-date and is followed by a more in-depth discussion of the processing and properties of crystalline unary (silicon and germanium) and binary (indium antimonide) semiconductor optical fibers prepared by a molten core approach that enables long lengths at relatively high speeds by comparison to other fabrication methods. Further, the fundamental performance limits are postulated as are a range of present and future applications. 相似文献
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In this paper, we report a preliminary theoret-ical study on optical fibers with fine material inclusions whose geometrical inhomogeneity is almost indistinguish-able by the operating wavelength. We refer to such fibers as metamaterial optical fibers, which can conceptually be considered as an extension from the previously much publicized microstructured optical fibers. Metamaterials can have optical properties not obtainable in naturally existing materials, including artificial anisotropy as well as graded material properties. Therefore, incorporation of metamaterial in optical fiber designs can produce a new range of fiber properties. With a particular example, we will show how mode discrimination can be achieved in a multimode Bragg fiber with the help of metamaterial. We also look into the mean field theory as well as Maxwell-Garner theory for homogenizing a fine metamaterial structure to a homogeneous one. The accuracies of the two homogenization approaches are compared with full-structure calculation. 相似文献
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双芯光纤是一种极其重要的无源光器件,它在光通信及光传感等方向发挥了不可替代的作用。首先介绍了目前主要存在的几种双芯光纤的结构、分类及其最新的制作工艺,然后根据双芯光纤独有的结构特性及两芯子之间耦合特性所表现出来的光谱特性在光纤传感与光通信领域的应用进行了叙述,最后通过数据知识平台的结果展示了近10年来与双芯光纤相关的热词并分析了双芯光纤近十年的发展趋势及其发展前景。 相似文献
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程平辉 《光纤与电缆及其应用技术》2009,(1):43-45
由于当前同一类别光纤有多种标注方式,易使技术人员产生混淆,因而分别就标注在光缆外护套、光纤熔接机上同一光纤的不同标示进行了列表对比和说明。 相似文献