光纤互连器件和无源元件 连接器光学接口 第3-1部分：非色散位移单模物理接触光纤的连接器参数 非倾斜 2.5 mm 和 1.25 mm 直径圆柱形全氧化锆

[中文适用范围]： 本部分 IEC 61755 定义了单模光纤连接器光学接口的尺寸限制，这些连接器采用直径2.5 mm或1.25 mm的圆柱形氧化锆(ZrO2)插芯，以满足IEC 61755-2-1中定义的光纤互连特定要求。本文件规定的材料制成的插芯适用于IEC 61753-1中定义的所有操作服务环境。插芯尺寸和特性包含在IEC 61754系列光纤连接器接口标准中。 [外文原描述]： IEC 61755-3-1:2024 defines the dimensional limits of the optical interface that are necessary for single-mode fibre optic connectors with 2,5 mm or 1,25 mm diameter cylindrical zirconia (ZrO2) ferrules to meet the specific requirements for fibre-to-fibre interconnection, as defined in IEC 61755-2-1. Ferrules made from the material specified in this document are suitable for use in all the operating service environments defined in IEC 61753-1. Ferrule dimensions and features are contained in the IEC 61754 series of fibre optic connector interface standards. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) normative references have been added; b) the introduction of an additional optical interface with a different fibre core eccentricity profile. The previous revision of optical interface standard is named "Variant 1: with fibre core axis oriented towards the connector guide key". The additional optical interface is named "Variant 2: with fibre core axis not oriented towards the connector guide key"; c) statements added related to interoperability, where both variants remain intermateable within a given performance grade and backwards compatible to IEC 61755-3-1:2006; d) The addition of Grade B and Grade C interface requirements for both variants; e) The addition of a descriptive statistic for the mean fibre core eccentricity (mean value) to describe the distribution of fibre core eccentricity to ensure interoperability; f) A new informative Annex B to give guidance on the expected attenuation when mated to a reference connector plug; g) A new informative Annex C to give guidance related to the simulation of optical interface attenuation; h) A new informative Annex D to give guidance related to estimation of mean fibre eccentricity limits for finite production batch sizes.