光纤光缆原理和制造工艺.docx

光纤光缆原理和制造工艺.docx

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光纤光缆原理和制造工艺

光纤光缆原理和制造工艺

1.光纤传输原理、结构、分类、制造工艺流程、检测方法及依据标准

2.光缆分类、令号、光缆材料、光缆制造工艺，光缆主要特点、项目及光缆设计制造及检验依据的标准

3.影响光缆寿命的主要因素及光缆选用的原则

4.本所情况简介

1.1光纤传输原理及光纤结构

光纤传输依据光的反射原理

1.2光纤分类

G652-B1

单模光纤G653、G654

G655-B4

A1a50/125

多模光纤G651

A1b62.5/125

1.3光纤制造工艺

MCVD法、PCVD法

光纤预制棒熔炼工艺

VAD法、OVD法

光纤拉丝工艺

1.4光纤特性检测方法及依据的标准

单模光纤测试方法P24

2.1光缆分类、命名

紧结构

按光纤在光缆中松紧度分

松结构

中心管式

按缆结构分层绞式

骨架式

架空

按光缆敷设条件分管道

直埋

水底

光缆的命名主要依据YDT908-2000《光缆型号命名方法》

举例GYTA53

GYTA53

聚乙烯外护套

钢塑复合带铠装

铝聚乙烯护套

全填充

通信用室

2.2制造光缆所用主要材料及其特点

光纤铝塑复合带

PBT料钢塑复合带

纤膏聚乙烯护套料

金属加强件聚氯乙烯护套料

非金属加强件

2.3光缆制造工艺

光纤着色→光纤套塑→成缆→护套

2.4光缆主要特性

光缆机械特性及温度特性

光缆的拉伸、压扁、冲击、反复弯曲、温度范围

光缆名称

项目

管道

架空

直埋

抗拉力N

短期

1500

1500

3000

长期

600

600

1000

压扁力N/100min

短期

1000

1000

3000

长期

300

300

1000

冲击、冲击能量N.m

4.5

4.5

10

最小弯

曲半径

敷设

运行

温度范围℃

2.5主要技术标准

3.1影响光缆寿命的主要因素

光缆材料保证光缆所用材料寿命超过30年，光纤寿命计算公式

光缆设计及制造工艺：

合理设计光缆结构控制工艺参数，确保光缆无残余应力，其中光纤始终处于零应力状态。

3.2光缆选用原则

根据工作波长（850nm波长、1300nm波长、1310nm波长、1550nm波长）

根据使用敷设条件（架空、管道、直埋、水下）

根据气温条件、使用地域

根据使用要求（防雷击、防鼠害、防白蚁、阻燃）

4.信息产业部八所简介

·70年代未开始研制光纤光缆

·专业技术人员雄厚

·建有军用陆上光缆生产线、军用海底光缆生产线

·通过ISO9001质量体系认证

·军用光缆入网

（英文版）

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