IEC 61290-4-3:20 18适用于输出功率控制的光放大初级sub？系统。它适用于使用含有稀有金属的有源光纤的光纤放大器（OFAs）？如IEC 61291-1中所示，目前可商购获得的接地掺杂剂，以及可用于单通道输出功率控制操作的替代光放大器，例如半导体光放大器(SOA)。本文件的目的是提供光放大器（OAs）功率瞬态及其测量的一般背景，并指出用于准确可靠测量以下瞬态参数的IEC标准测试方法: a)瞬态功率响应； b)瞬态功率过补偿响应； c)稳态功率偏移； d)瞬态功率响应时间。所考虑的刺激和反应行为包括以下内容: 1.信道功率增加（阶跃瞬态）； 2.信道功率降低（逆阶跃瞬态）； 3.通道功率增加/减少（脉冲瞬态）； 4.通道功率降低/增加（反向脉冲瞬态）； 5.通道功率增加/减少/增加（闪电瞬态）； 6.通道功率降低/增加/降低（反向闪电瞬态）。 包括这些参数以提供输出功率瞬态受控OA的瞬态行为的完整描述。如果放大器是OFA或替代OA，则此处定义的测试定义适用。然而，附件A中的描述集中于OFA的物理性能，并提供了OFA行为的详细描述；它没有给出其他OA类型的类似描述。附录B提供了瞬态条件下输出功率控制放大器动态现象的详细描述背景，附录C详细介绍了瞬态输入速度的影响。这第二版取消并取代了2015年出版的第一版。本版构成技术修订版。与上一版相比，本版包括以下重大技术变化:放大自发辐射（ASE）相对于信号功率的测量与IEC 61290-3-3中的定义一致。 关键词:光放大器（OAs）功率瞬态 本国际标准应与IEC 61291-1:20 12结合使用

IEC 61290-4-3:2018 applies to output power controlled optically amplified, elementary sub？systems. It applies to optical fibre amplifiers (OFAs) using active fibres containing rare？earth dopants, presently commercially available, as indicated in IEC 61291-1, as well as alternative optical amplifiers that can be used for single channel output power controlled operation, such as semiconductor optical amplifiers (SOAs). The object of this document is to provide the general background for optical amplifiers (OAs) power transients and their measurements and to indicate those IEC standard test methods for accurate and reliable measurements of the following transient parameters:
a) transient power response;
b) transient power overcompensation response;
c) steady-state power offset;
d) transient power response time.
The stimulus and responses behaviours under consideration include the following:
1. channel power increase (step transient);
2. channel power reduction (inverse step transient);
3. channel power increase/reduction (pulse transient);
4. channel power reduction/increase (inverse pulse transient);
5. channel power increase/reduction/increase (lightning bolt transient);
6. channel power reduction/increase/reduction (inverse lightning bolt transient).
These parameters have been included to provide a complete description of the transient behaviour of an output power transient controlled OA. The test definitions defined here are applicable if the amplifier is an OFA or an alternative OA. However, the description in Annex A concentrates on the physical performance of an OFA and provides a detailed description of the behaviour of an OFA; it does not give a similar description of other OA types. Annex B provides a detailed description background of the dynamic phenomenon in output power controlled amplifiers under transient conditions and Annex C details the impact of speed of transient inputs.This second edition cancels and replaces the first edition published in 2015. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: alignment of the measure of amplified spontaneous emission (ASE) relative to signal power with the definition in IEC 61290-3-3.
Keywords: optical amplifiers (OAs) power transients
This International Standard is to be used in conjunction with IEC 61291-1:2012