光放大器 - 测试方法 - 第4-1部分:增益瞬态参数 - 双波长方法

[中文适用范围]： 本部分 IEC 61290-4 适用于使用含稀土掺杂活性光纤（掺铒光纤放大器 (EDFA) 及其他光放大器 (OFA)）以及光放大基本子系统的放大器。这些放大器已商业化并广泛应用于服务提供商网络中。 本文档的目的是提供 OFA 瞬态及相关参数的背景概述，并描述一种标准化的测试方法，用于准确可靠地测量以下瞬态参数： a) 信道添加或移除时的瞬态增益过冲和瞬态净增益过冲； b) 信道添加或移除时的瞬态增益欠冲和瞬态净增益欠冲； c) 信道添加或移除时的增益偏移； d) 信道添加或移除时的瞬态增益响应时间常数（稳定时间）。 [外文原描述]： IEC 61290-4-1:2016 applies to optical amplifiers (OAs) using active fibres (optical fibre amplifiers (OFAs)) containing rare-earth dopants including erbium-doped fibre amplifiers (EDFAs) and optically amplified elementary sub-systems. These amplifiers are commercially available and widely deployed in service provider networks. The object of document is to provide the general background for OFA transients and related parameters, and to describe a standard test method for accurate and reliable measurement of the following transient parameters: - channel addition or removal transient gain overshoot and transient net gain overshoot; - channel addition or removal transient gain undershoot and transient net gain undershoot; - channel addition or removal gain offset; - channel addition or removal transient gain response time constant (settling time). This second edition cancels and replaces the first edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - extended the applicability from only EDFAs to all OFAs; - updated definitions for consistency with other documents in the IEC 61290-4 series. Keywords: optical amplifiers (OAs), optical fibre amplifiers (OFAs), rare-earth dopants, erbium-doped fibre amplifiers