纤维光学互连器件和无源元件.纤维光学固定滤波器.总规范

[中文适用范围]： 本文件适用于光纤滤波器系列。这些组件具有以下所有通用特征： - 它们是无源的，因为它们不包含任何可以处理输入端口发射的光信号的光电子或其他换能元件； - 它们修改光谱强度分布，以选择某些波长并抑制其他波长； - 它们是固定的，即光谱强度分布的修改是固定的，无法调节； - 它们具有输入和输出端口，或具有输入和输出双重功能的公共端口，用于传输光功率；端口为光纤或光纤连接器； - 它们根据其特征有所不同。可分为以下几类： • 短波通（仅允许小于或等于指定值波长的光通过）； • 长波通（仅允许大于或等于指定值波长的光通过）； • 带通（仅允许光学窗口）； • 陷波（仅抑制光学窗口）； • 增益平坦（补偿设备的频谱特性）。 上述类别也可以组合。 本文件提供了包括 IEC 61753-04x 系列文档术语在内的通用信息。已发布的 IEC 61753-04x 系列文档列在参考文献中。 本文件建立了光学、机械和环境特性的统一要求。 [外文原描述]： IEC 61977:2020 applies to the family of fibre optic filters. These components have all of the following general features: - they are passive for the reason that they contain no optoelectronic or other transducing elements which can process the optical signal launched into the input port; - they modify the spectral intensity distribution in order to select some wavelengths and inhibit others; - they are fixed, i.e. the modification of the spectral intensity distribution is fixed and cannot be tuned; - they have input and output ports or a common port (having both functions of input and output) for the transmission of optical power; the ports are optical fibre or optical fibre connectors; - they differ according to their characteristics. They can be divided into the following categories: - short-wave pass (only wavelengths lower than or equal to a specified value are passed); - long-wave pass (only wavelengths greater than or equal to a specified value are passed); - band-pass (only an optical window is allowed); - notch (only an optical window is inhibited); - gain flattening (compensating the spectral profile of the device). It is also possible to have a combination of the above categories. This document provides the generic information including terminology of IEC 61753-04x series documents. Published IEC 61753-04x series documents are listed in the Bibliography. This document establishes uniform requirements for optical, mechanical and environmental properties. 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: - change of the title and the scope for the limitation to fibre optic fixed filters; - addition of new terms and definitions reflecting new title; - removal of terms and definitions duplicated in IEC TS 62627-09; - harmonization of the vertical axis of Figures 1 to 5; - restructuration of Clause 4 reflecting the latest technical and market situation.