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Systems and method of multi-band pilot tone based optical performance monitoring
Systems and method of multi-band pilot tone based optical performance monitoring
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机译:基于多频带导频音的光学性能监控系统和方法
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摘要
Systems and methods for applying a pilot tone to multiple spectral bands are provided. An initial signal is divided into multiple spectral bands. A pilot tone is applied to each of the spectral bands, and then the signals are again combined for transmission. The pilot tones differ in some way, for example in phase or frequency.
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