IEC 60793-2-70:2017 IEC 60793的这一部分适用于D1、D2、D3类型的光纤，如表1所述。这些光纤是偏振保持光纤类型，并且用于或可并入信息传输设备和光缆中。这些光纤可用于光传输网络。三种类型的要求适用于这些纤维: -IEC 60793-2中定义的一般要求； -本文件涵盖的D类保偏光纤共有的具体要求，这些要求在第4条中给出； -适用于个别纤维类型或特定应用的特殊要求，定义见附件A至C。 表1-玻璃芯/玻璃包层保偏光纤的类别 类别 类型 说明 D1 适用于980nm的保偏光纤 这类保偏光纤针对980nm区域的保偏能力进行了优化。该光纤用于掺铒光纤放大器。 D2 适用于1310nm的保偏光纤 这类保偏光纤针对B类光纤在1310nm区域的保偏能力和连接特性进行了优化。 D3 适用于1550nm的保偏光纤 这类保偏光纤针对B类光纤的保偏能力和连接性能进行了优化 1550nm区域。 关键词:光纤类型D1 D2 D3，保偏光纤

IEC 60793-2-70: 2017 This part of IEC 60793 is applicable to optical fibre types D1, D2, D3, as described in Table 1. These fibres are polarization-maintaining fibre types, and are used or can be incorporated in information transmission equipment and optical fibre cable. These fibres are available for use in optical transport networks. Three types of requirements apply to these fibres:
- general requirements defined in IEC 60793-2;
- specific requirements common to the category D polarization-maintaining fibres covered in this document and which are given in Clause 4;
- particular requirements applicable to individual fibre types or specific applications, which are defined in Annexes A to C.

Table 1– Categories of glass core/glass clad polarization-maintaining fibres

 

Keywords: optical fibre types D1 D2  D3, polarization-maintaining  fibre