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Digital Coherent Detection of Multi-Gigabit 16-QAM signals at 40 GHz Carrier Frequency using Photonic Downconversion
Digital Coherent Detection Multi-Gigabit Carrier Frequency Photonic Downconversion
2009/7/21
We experimentally demonstrate detection of multi-gigabit 16-QAM modulated signals, of up to 4 Gb/s, at a 40 GHz carrier frequency by combining photonic downconversion and low bandwidth electronics.
Real-time Implementation of Digital Coherent Detection
Real-time Implementation Digital Coherent Detection
2009/7/15
The implementation of algorithms for coherent detection of advanced modulation formats imposes constraints. A hardware-efficient phase estimator is presented, and measurement results with a CMOS recei...