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]： 本文件适用于具有以下所有特征的光纤领域使用的环行器：它们是非互易光学器件，其中每个端口是光纤或光纤连接器；它们是根据IECTS62538中提供的分类和定义的无源器件；它们具有三个或更多端口用于定向传输光功率。光学环行器技术和应用的示例分别在附录A和附录B中描述。 [外文原描述]： IEC 62077:2022 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. 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