| ODN中光纤的宏弯损耗对ONU弱光的影响 |
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| 引用本文： | 丁为民,代岭,杨珩.ODN中光纤的宏弯损耗对ONU弱光的影响[J].电信工程技术与标准化,2021(6). |
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| 作者姓名： | 丁为民 代岭 杨珩 |
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| 作者单位： | 中国移动通信集团设计院有限公司安徽分公司,中国移动通信集团设计院有限公司安徽分公司,中国移动通信集团设计院有限公司安徽分公司 |
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| 摘 要： | 通过对ONU弱光的ODN链路衰耗进行分析,发现ODN链路的下行衰耗严重超标的现象,在用OTDR进行故障定位、并测试光纤在相应波长的宏弯损耗后,得出光纤的宏弯损耗是导致ODN链路下行衰耗超标的原因；进一步对ODN链路的入户段光缆进行衰耗测试,从而验证了宏弯损耗是引起ONU弱光的主要原因。
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| 关 键 词： | ONU弱光，ODN，宏弯损耗，入户段光缆，尾纤 |
| 收稿时间： | 2020/9/29 0:00:00 |
| 修稿时间： | 2020/10/19 0:00:00 |
Influence of macro bend loss of optical fiber on optical attenuation of ONU in ODN |
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| DING Wei min,DAI Ling and YANG Heng.Influence of macro bend loss of optical fiber on optical attenuation of ONU in ODN[J].Telecom Engineering Technics and Standardization,2021(6). |
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| Authors: | DING Wei min DAI Ling and YANG Heng |
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| Institution: | China Mobile Group Design Institute Co.,Ltd.ANHUI Branch,China Mobile Group Design Institute Co.,Ltd.ANHUI Branch,China Mobile Group Design Institute Co.,Ltd.ANHUI Branch |
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| Abstract: | Through the analysis of ODN link attenuation with high optical attenuation of ONU, it is found that the downlink attenuation of ODN link exceeds the standard seriously. After using OTDR to locate the fault and test the macro bend loss of optical fiber at corresponding wavelength, it is concluded that the macro bend loss of optical fiber is the cause of ODN link downlink attenuation exceeding the standard; further, the attenuation test is conducted for the optical cable in the home section of ODN link, It is verified that the macro bend loss is the main reason for the high optical attenuation of ONU. |
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| Keywords: | The optical attenuation of ONU is high ODN macro bend loss home section optical cable pigtail |
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