公开(公告)号：US07849713B2

公开(公告)日：2010-12-14

申请号：US10538899

申请日：2002-12-24

申请人： Antonio Collaro ,  Giuseppe Ferri ,  Alfonso Pannullo

发明人： Antonio Collaro ,  Giuseppe Ferri ,  Alfonso Pannullo

IPC分类号： C03B37/023 ,  C03B37/07

CPC分类号： G02B6/02271 ,  C03B37/0253 ,  C03B37/027 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/29 ,  C03B2203/36 ,  C03B2205/40 ,  G02B6/02014 ,  G02B6/0228 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03661 ,  G02B6/2551

摘要： A process for making a non-zero dispersion shifted optical fiber having low splice loss and low attenuation and to an optical fiber produced by this process. A reduction of the splice loss is observed with decreasing drawing tension. The optical fiber has a core region that includes three segments and an inner cladding segment, each having a maximum refractive index percent difference, Δdeltai %, i=0-3, the subscript i referring to a particular refractive index, the core segments being selected such that Δdelta0%>Δdelta2%>Δdelta1%≧0 and Δdelta2%>Δdelta3%≧0. Optical fibers exhibiting low splice loss were drawn at tensions not larger than 150 g, preferably not larger than 100 g.

摘要翻译： 用于制造具有低接合损耗和低衰减的非零色散位移光纤以及由该工艺产生的光纤的工艺。 随着拉伸张力的降低观察到剪切损失的减少。 光纤具有芯区域，其包括三个区段和内包层区段，每个区段具有最大折射率百分比差异，Dgr; deltai％，i = 0-3，下标i表示特定折射率，核心段 被选择为使得＆Dgr; delta0％>＆Dgr; delta2％>＆Dgr; delta1％≥0和＆Dgr; delta2％>＆Dgr; delta3％≥0。 在不大于150g，优选不大于100g的拉伸下拉伸显示出低接头损耗的光纤。