摘要
G.657光纤具有优异的弯曲损耗不敏感性能,被认为是诸如光纤到户(FTTH)等局域网和接入网系统的首选产品,因此,该光纤的研究倍受重视。提出了一种采用全合成工艺制造G.657光纤的方法,详细探讨了芯层和第一包层区的厚度(a、b)及其折射率差(△1、△2)与光纤性能之间的关系。研究表明,当a的取值在3.5～4.0μm之间,b的取值在0.5～1.9μm之间,△1的取值在0.0034～0.0045之间,△2的取值在-0.0006～0之间时,可制得满足ITU.T G.657.A标准的光纤;当a的取值在2.8～3.2μm之间,b的取值在0.8～2.1μm之间,△1的取值在0.0058～0.0072之间,△2的取值在-0.0016～-0.0008之间,可制得满足ITU.T G.657.B标准的光纤。且该光纤在结构上相对简单,无特殊设计的沟、槽、孔,因此制作工艺相对容易、稳定,易于推广和应用。
G. 657 fibers are regarded as the first choice for local net and access net such as Fiber to the home （FTTH） systems for their excellent property of bend-insensitive loss. Therefore, this kind of fiber is highly discussed in recent years. A method of fully synthetic process was introduced to fabricate G. 657 fibers, and the relation between attributes of fiber and the size of core a and cladding b difference of refractive index of core （△1） and cladding （△2） were discussed in detail. As a result, when a is between 3.5-4.0 μm, b is between 0.5 - 1.9 μm, △1 between 0. 0034-0. 0045 and △2 between -0. 0006-0 fibers complying with the standard of ITU. T G. 657. A are obtained, while a is between 2.8-3.2.0 μm, b is between 0.8-2.1 μm, △1 between 0. 0058-0. 0072 and △2 between -0. 0016--0. 0008 fibers complying with the standard of ITU. T G. 657. B are obtained. Structures of the fibers are simple without special dips, grooves or holes, and therefore easy to fabricate, spread and use.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2009年第6期1471-1475,共5页
Acta Optica Sinica
基金
国家科技部基金(2007BAE39B02)资助项目
