64-QAM Signal Carrier Recovery from Low Power Pilot Tone by Narrowband Brillouin Amplification before Coherent Detection
2018 European Conference on Optical Communication (ECOC)（2018）
摘要
Low noise carrier-recovery is demonstrated for 48-Gb/s 64-QAM signals by Brillouin amplification of an orthogonally-polarized pilot tone. Through increased carrier-to-noise ratio enabled by narrowband Brillouin gain, comparable bit-error-rate to using a conventional local oscillator laser is achieved after 80-km transmission.
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关键词
QAM signal carrier recovery,low power pilot tone,narrowband brillouin amplification,coherent detection,low noise carrier-recovery,64-QAM signals,orthogonally-polarized pilot tone,narrowband Brillouin gain,comparable bit-error-rate
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