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Digital Optical Phase Locked Loop for Real-Time Coherent Demodulation of Multilevel PSK/QAM
Optical communications Coherent communications
2015/6/8
We propose a digital optical phase locked loop (DOPLL) for real-time demodulation of high-speed multilevel PSK/QAM. It was simply implemented using low-speed digital signal processor after electrical ...
Coherent Demodulation of 10-Gb/s Optical Minimum-Shift Keying
Optical communications Coherent communications
2015/6/4
We propose and demonstrate a digital coherent detection scheme for demodulation of optical MSK signal. A 10-Gb/s MSK signal synthesized by using a quad Mach-Zehnder in-phase/quadrature modulator was e...