纤维光学互连器件和无源元件.纤维光学环行器.总规范

[中文适用范围]： 此标准适用于光纤环形器，涵盖了分类、性能要求、设计与制造等方面的基本技术规格。 [外文原描述]： IEC 62077: 2022 applies to circulators used in the field of fibre optics bearing all of the following features: - they are non-reciprocal optical devices, in which each port is either an optical fibre or fibre optic connector; - they are passive devices in accordance with the categorization and definition provided in IEC TS 62538; - they have three or more ports for directionally transmitting optical power. An example of optical circulator technology and application is described in Annex A and Annex B, respectively. This fourth edition cancels and replaces the third edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - harmonization of terms and definitions with IEC TS 62627-09; - change of Clause 4 regarding requirements