EDFA Wavelength Dependent Gain Spectrum Measurement Using Weak Optical Probe Sampling
EDFA Wavelength Dependent Gain Spectrum Measurement Using Weak Optical Probe Sampling
复制标题
使用弱光探头采样进行 EDFA 波长相关增益频谱测量
DOI：
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发表时间：
2018
影响因子：
2.6
通讯作者：
D. Kilper
中科院分区：
文献类型：
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作者：
W. Mo;Shengxiang Zhu;Yao Li;D. Kilper
波长相关增益是掺铒光纤放大器中的关键参数，并且是光传输系统中的信道功率发散和偏移的主要决定因素，每个发散和偏移随波分复用（WDM）系统中的信道负载而变化。在光传输系统中，两个位置之间的波长相关增益的测量可用于获得在光路交换中发生的光功率偏移的估计。使用弱探测信号仅对10%的WDM信道位置进行非侵入式采样，对于具有5 dB倾斜的放大器的增益谱估计，误差小于0.15 dB。在具有3dB峰-峰信道功率差的两跨节点到节点网络中，弱探测方法进一步示出对于信道负载的变化在光信道功率偏移预测中提供小于0.2dB的误差。
Wavelength dependent gain is a critical parameter in erbium-doped fiber amplifiers and is the primary determinant of the channel power divergence and excursions in optical transmission systems, each of which varies with channel loading in wavelength-division-multiplexed (WDM) systems. In an optical transmission system, measurements of the wavelength dependent gain between two locations can be used to obtain estimates of optical power excursions that occur in optical circuit switching. Non-intrusive sampling of just 10% of the WDM channel positions using weak probe signals achieves less than 0.15 dB error for the gain spectrum estimation of the amplifier with 5 dB tilt. In a two-span node-to-node network with a 3 dB peak-to-peak channel power difference, the weak probe approach further shows to provide less than 0.2 dB error in optical channel power excursion prediction for changes in channel loading.