共查询到20条相似文献,搜索用时 62 毫秒
2.
3.
4.
6.
光纤活动连接器在CATV光传输系统中主要起到活动连接的作用,是CATV系统中裸光纤唯一暴露于环境中的地方,因此光纤活动连接器的质量与光学性能尤为重要. 相似文献
7.
随着广播电视光缆传输网的建设,有线电视电缆网的改造,光缆的纤芯数及敷设量在有线电视系统呈现高速增长的势头,光传输设备的使用也越来越多。在有线电视网络的建设过程中,怎样选择一种容量大、功能强、安装灵活、使用方便的光纤配线架(ODF),也是一个不容忽视的... 相似文献
9.
结合广东省内本地光纤传输网的具体情况 ,通过对网络扩容的技术经济进行分析比较 ,提出本地网建设中网络扩容措施及光纤选用的几点看法 相似文献
11.
《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
12.
圆形电介质包层金属空心光纤 总被引:2,自引:0,他引:2
苏宇欢 《光纤与电缆及其应用技术》2001,(4):39-45
综述了圆形电介质包层金属空心光纤的材料特性、制作工艺与应用 ,并指出了该材料的发展趋势 相似文献
13.
14.
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
15.
介绍光纤分析的数值基础和程序设计过程,并给出最后软件。文中利用该软件设计分析了新型的三抛物线型光纤的传输特性。 相似文献
16.
与传统微结构光纤相比,开放式微结构光纤不仅保持了可通过灵活的几何结构设计,从而获得优化光学传感性能的优点,利用其开放式无需预填充的特点,还可较大幅度地提高传感实时工作效率。本文对近年来出现的几种具有代表性的开放式微结构光纤进行了讨论。比较了利用开放全内反射型、WagonV%甜型及嵌入导流孔型开放式微结构光纤作为实时气液传感器时各自的优缺点。研究表明,这几种开放式微结构光纤都在气液实时传感领域显示了较为独特的优点。借助于开放式微结构光纤,可为未来高精度实时光纤传感器领域的设计提供一种较有竞争力的技术支撑。 相似文献
17.
18.
19.
20.
代康 《光纤与电缆及其应用技术》2002,(1):21-24,38
简要归纳了紧套光纤的主要技术要求,对比介绍了改善紧套光纤缓冲层剥离性以及室内光缆低温性能的几种方法。最后介绍了近年来紧套光纤设计和制造技术的新进展。 相似文献