- 面议
起订量：
光纤
- 型号
详细信息
光纤是由中心的纤芯和外围的包层同轴组成的圆柱形细丝。其纤芯由高纯度石英制成，光纤包层由二氧化硅制成，涂覆层由双层紫外线固化丙烯酸树脂制成。
应用
◇ 中心束管式光缆、松套层绞光缆、紧套光缆、带光缆、骨架光缆等
多模规格性能
类别 | Ala | Alb | Alc | Ald | |
芯直径μm | 50±2.5 | 62.5±2.5 | 85±3.0 | 100±4.0 | |
包层直径μm | 125±1.0 | 125±1.0 | 125±3.0 | 140±4.0 | |
芯不圆度% | ≤6.0% | ≤6.0% | ≤6.0% | ≤6.0% | |
包层不圆度% | ≤2.0% | ≤2.0% | ≤2.0% | ≤2.0% | |
芯/包层同心偏差μm | ≤1.5 | ≤1.5 | ≤1.5% | ≤1.5% | |
衰减 dB/km | 850nm | ≤2.3 | ≤2.74 | ≤4.0 | ≤4.0 |
≤2.5 | ≤3.0 | ||||
1300nm | ≤0.55 | ≤0.6 | ≤2.0 | ≤3.0 | |
≤0.70 | ≤0.80 | ||||
带宽 MHz·km | 850nm | ≥500 | ≥200 | ≥200 | ≥150 |
≥400 | ≥160 | ||||
1300nm | ≥1000 | ≥600 | ≥1000 | ≥500 | |
≥800 | ≥500 | ||||
zui大理论数值孔径 | 0.2±0.02 | 0.275±0.015 | 0.22～0.26±0.02 | 0.29±0.02 | |
单模规格性能
特 性 | 单 位 | G652 | G653 | G654 | G655 | |||
1310nm | 1550nm | 1310nm | 1550nm | 1550nm | 1550nm | |||
衰减 | * | dB/km | ≤0.36 | ≤0.22 | ≤0.40 | ≤0.22 | ≤0.19 | ≤0.22 |
B级 | ≤0.40 | ≤0.25 | ≤0.45 | ≤0.25 | ≤0.22 | ≤0.25 | ||
C级 | ≤0.50 | ≤0.40 | ≤0.50 | ≤0.35 | ≤0.35 | |||
色散特性 | nm | 零色散波长范围为 | 零色散波长zui大容差 |
| 非零色散区 | |||
ps/(nm2·km) | 零色散zui大值为0.093 |
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ps/(nm·km) | 1288～1339nm色散系数zui大值为3.5 |
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1271～1360nm色散系数zui大值为5.3 |
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1550nm色散系数zui大值为18 | 1525～1575nm色散系数zui大值为3.5 | 1550nm色散系数zui大值为20 |
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模场直径 | μm | (8.6～9.5)±0.7(1310nm) | (7.8～8.5)±0.7(1550nm) | (9.5～10.5)±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 | % | ≤2.0 | ≤2.0 | ≤2.0 | ≤2.0 | |||
截止波长λcc | nm | ≤1260 | ≤1270 | ≤1530 | ≤1480 | |||
