Description
产品描述
为了实现跨洋洲际海底光纤通信,在G.652单模光纤基础上进一步研究出了截止波长位移单模光纤,G.654光纤折射率剖面结构形状与G.652单模光纤基内幕同。G.654光纤是通过接纳纯二氧化硅(SiO2)纤芯来降低光纤衰减,靠包层掺杂F使折射率下降而获得所需要的折射率差。与G.652光纤相比,G.654光纤性能上的突出特点是:在1550nm事情波长,衰减系数极小,仅为0.15dB/km左右;通过截止波长位移要领,大大改善了光纤的弯曲附加损耗。ITU-T建议将截止波长位移单模光纤界说为G.654光纤。
应用情况
G.654光纤主要用于海缆通信系统,为适应海缆通信长距离、大容量的需求。
产品特点
(1)降低光纤的损耗;从G.652的0.22dB/km降到了0.19dB/km(标准值)
(2)增大光纤的模场直径;光纤的模场直径越大,通过光纤横截面的能量密度就越小,从而改善光纤的非线性***应,提升光纤通信系统的信噪比。
产品技术参数
特性
|
单位
|
G652
|
G653
|
G654
|
G655
|
131Onm
|
1550nm
|
131Onm
|
1550nm
|
1550nm
|
1550nm
|
衰 减
|
A级
|
dB/km
|
≤O.35
|
≤0.22
|
≤0.40
|
≤0.22
|
≤0.19
|
≤0.22
|
B级
|
dB/km
|
≤0.40
|
≤0.25
|
≤0.45
|
≤0.25
|
≤0.22
|
≤0.25
|
C级
|
dB/km
|
≤0.45
|
≤0.30
|
≤0.55
|
≤0.35
|
|
≤0.30
|
色散特性
|
nm
|
零色散波长规模 为 1300-1324
|
零色散波长 ***大容差
△λomax≤50
|
|
非零色散区
1530≤λmin≤λmax≤1565
|
ps/(nm2km ) ps/(nm.km )
|
零色散的***大值 为 0.093
|
零色散斜率***大值 Smax≤O.085
|
|
非零色散区
色散系数******值 0.1≤Dmin≤Dmax≤6.0
|
1288?1339nm 色 散系数***大值为 3.5
|
|
|
|
1271 ?1360nm 色 散系数***大值为 5.3
|
|
|
|
1550nm色散系 数***大值为18
|
1525 ?1575nm 色散系数***大值 为 Dmax = 3.5
|
1550nm 色 散系数*** 大值为20
|
|
模场直径
|
μm
|
(8.6~9.5)±0.7 1310nm
|
(7.8~8.5)±0.7
1550nm
|
(95~105)±0.7
1550nm
|
(8.0-11.0)±0.7
1550nm
|
包层直径
|
μm
|
125±1
|
125±1
|
125±1
|
125+1
|
芯/包层同 心偏差
|
μm
|
≤0.8
|
≤0.8
|
≤0.8
|
≤0.8
|
包层不圆度
|
%
|
≤1.0
|
≤1.0
|
≤1.0
|
≤1.0
|
截止波长λcc
|
nm
|
≤1260
|
≤1270
|
≤1530
|
≤1480
|
本产品为FT系列,如有需要,请联系尊龙凯时。
注:本产品有全国产化型号可选
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.