首页>
外国专利>
Determining in-band optical signal-to-noise ratio in polarization-multiplexed optical signals using signal correlations
Determining in-band optical signal-to-noise ratio in polarization-multiplexed optical signals using signal correlations
展开▼
机译:使用信号相关性确定偏振复用光信号中的带内光信噪比
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method and apparatus for determining in-band OSNR in optical information signals, e.g. in polarization-multiplexed QPSK and higher-order M-ary QAM signals, are disclosed. A correlation measurement of the signal amplitude or power at two distinct optical frequencies of the signal may be used to determine the in-band optical noise in the signal. A measurement of the signal power may be used to determine the OSNR based on the determined in-band noise.
展开▼