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Polarization-Dependent Loss Induced Penalties in PDM-QPSK Coherent Optical Communication Systems
Fiber optics communications Coherent communications Polarization
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2015/6/10
We evaluate PDL-induced penalties in PDM-QPSK coherent systems with both lumped model and distributed model. We find the lumped model significantly over-estimates PDL penalties and PDM coherent system...
Polarization-Multiplexed Multilevel LDPC-Coded Modulation for Optical Communication Systems
Polarization-Multiplexed Multilevel LDPC-Coded Modulation Optical Communication Systems
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2015/7/17
Polarization-multiplexed coded-modulation, with joint coherent MAP detection and soft-iterative decoding, which considers independent symbols transmitted over both polarizations as a super-symbol is p...
Global Optimization of Optical Communication Systems
Global Optimization Optical Communication Systems
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2015/8/6
We present a novel, fast method for optimizing the performance of a system. It is used to optimize the dispersion map and signal power in a DQPSK 111Gb/s link.
InP-Based Waveguide Integrated Photodetectors for High-Speed Optical Communication Systems
photodetector photonic integrated circuit balanced and differential photodetector
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2010/7/15
We report on the development of evanescently coupled waveguide integrated photodetectors in single-ended,differential and balanced configurations, using a flexible monolithic integration scheme on InP...