IEC 62614-1:2020 光纤.多模发射条件.第1部分:测量多模衰减的发射条件要求

标准编号：IEC 62614-1:2020

中文名称：光纤.多模发射条件.第1部分:测量多模衰减的发射条件要求

英文名称：Fibre optics - Multimode launch conditions - Part 1: Launch condition requirements for measuring multimode attenuation

发布日期：2020-06-10

标准范围

IEC 62614-1:20 20描述了用于测量无源元件和已安装电缆设备中的多模衰减的发射条件要求。在本文件中，所述光纤类型包括A1-OMx类别，其中x=2、3、4和5（50 μ m/125 μ m），以及A1-OM1（62、5 μ m/125 μ m）多模光纤，如IEC 60793-2-10中所规定的。详细描述的标称测试波长为850 nm和1 300 nm。本文档可以适用于其他多模类别和/或其他波长的多模衰减测量，但是这里没有定义其他类别和波长的源条件。这些要求的目的如下:-当使用不同类型的测试设备时，确保现场测量的一致性；-当使用不同类型的测试设备时，确保工厂测量的一致性；-确保现场测量值与工厂测量值相比的一致性。本文件描述了使用具有受控环绕通量（EF）的源进行光学衰减的发射条件要求。第一版取消并取代了2010年发布的IEC 62614，构成了技术修订。此版本包括以下与IEC 62614相关的重大技术变更:a)50 μ m的不确定度衰减变异系数Y的值增加由于发射条件，1 300 nm的芯光纤是先前值的两倍；b)对3.4、5.6（包括表5）和一些参考文献的变更，以保持与IEC 61280-4-1:20 19一致；c)更改多模光纤参考以符合IEC 60793-2-10:20 19。

IEC 62614-1:2020 describes the launch condition requirements used for measuring multimode attenuation in passive components and in installed cable plants. In this document, the fibre types that are addressed include category A1-OMx, where x = 2, 3, 4 and 5 (50 μm/125 μm), and A1-OM1 (62,5 μm/125 μm) multimode fibres, as specified in IEC 60793-2-10. The nominal test wavelengths detailed are 850 nm and 1 300 nm. This document can be suitable for multimode attenuation measurements for other multimode categories and/or other wavelengths, but the source condition for other categories and wavelengths are not defined here. The purpose of these requirements is as follows:
- to ensure consistency of field measurements when different types of test equipment are used;
- to ensure consistency of factory measurements when different types of test equipment are used;
- to ensure consistency of field measurements when compared with factory measurements.
This document describes launch condition requirements for optical attenuation using sources with a controlled encircled flux (EF). This first edition cancels and replaces IEC 62614, published in 2010, and constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC 62614:
a) increase of the value of the uncertainty attenuation variation coefficient Y for 50 μm core fibre at 1 300 nm, due to launch conditions, to twice the previous value;
b) changes to 3.4, 5.6, including Table 5, and some references to remain consistent with IEC 61280-4-1:2019;
c) changes to multimode fibre references to be consistent with IEC 60793-2-10:2019.

标准预览图