| 熔接网技术问题 |
| 添加时间：2019/7/31 15:40:21 浏览次数： |
| 主要影响因素 Main Influencing Factors 影响光纤熔接损耗的因素较多，大体可分为光纤本征因素和非本征因素两类。 There are many factors affecting the splicing loss of optical fibers, which can be roughly divided into two categories: intrinsic factors and non-intrinsic factors. 1．光纤本征因素是指光纤自身因素，主要有四点。 1. The intrinsic factor of optical fiber refers to the factor of optical fiber itself, which has four main points. （1）光纤模场直径不一致； (1) The mode field diameters of optical fibers are different. （2）两根光纤芯径失配； (2) The diameter mismatch of two optical fibers; （3）纤芯截面不圆； (3) The cross section of the core is not round. （4）纤芯与包层同心度不佳。 (4) The concentricity of core and cladding is not good. 其中光纤模场直径不一致影响最大，按CCITT(国际电报电话咨询委员会)建议，单模光纤的容限标准如下： According to CCITT (International Telegraph and Telephone Advisory Committee), the tolerance criteria of single-mode optical fibers are as follows: 模场直径：（9~10μm）±10%，即容限约±1μm； The mode field diameter is (9-10 um)+10%, i.e., the tolerance is about +1 um. 包层直径：125±3μm； Cladding diameter: 125 +3 um; 模场同心度误差≤6%，包层不圆度≤2%。 The concentricity error of mode field is less than 6%, and the non-circularity of cladding is less than 2%. |
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