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Methods and apparatus for detecting and compensating bandwidth limitation and modulation nonlinearity of a coherent optical transponder
Methods and apparatus for detecting and compensating bandwidth limitation and modulation nonlinearity of a coherent optical transponder
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机译:用于检测和补偿相干光发射机的带宽限制和调制非线性的方法和装置
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摘要
In some embodiments, an apparatus includes a memory and a processor operatively coupled to the memory. The processor is configured to send a stimulus signal at a frequency that corresponds to a first frequency value to a tributary channel of a coherent optical transponder. The processor is configured to adjust an amplitude of the stimulus signal and receive a first plurality of output optical power values. The processor is configured to adjust the frequency of the stimulus signal and receive a second plurality of output optical power values. The processor is configured to determine a bandwidth limitation and a modulation nonlinearity, and then send a first signal to a first filter to reduce the bandwidth limitation and a second signal to a second filter to reduce the modulation nonlinearity.
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