Digital and electronic signal processing
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Spectrally efficient modulation formats in coherent systems
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Advanced modulation schemes for direct detection systems
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Channel characterization and equalization
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Polarization, clock and carrier recovery
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Forward error correction
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Signal Coding
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Implementation of distribution matchers for constellation shaping
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Orthogonal frequency-division multiplexing (OFDM)
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Flexible and sliceable transceivers
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Performance monitoring and signal characterization
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Digital-to-analog and analog-to-digital converters
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Real-time demonstration and field trials of high-speed electronic circuits and subsystems
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Demonstration of high capacity transmission
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Subsystems and digital signal processing for data center interconnects (DCI)
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Subsystems and digital signal processing for space-division multiplexing (SDM)
Optical signal processing
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Passive and active all-optical signal processing subsystems
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Microwave photonic subsystems
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Optical signal processing with photonic integrated circuits
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Optical buffering, bit-, and label-processing subsystems
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Optical packet and burst switching subsystems
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Performance monitoring and signal characterization based on optical techniques
In addition, four areas of research are covered in more detail: 3) Radio-over-fiber and free space optical communication, 4) Access networks - passive optical networks (PON), 5) Machine learning (ML) in optical communication, and 6) Quantum communications.
Radio-over-fiber and free space optical communication
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Digital, electronic and optical subsystems
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Optical-wireless integration and multi-technology converged transmission systems
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Visible light communication systems
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Fronthaul systems based on analog radio signals
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Ground-to-satellite/satellite-to-ground and inter-satellite optical communication
Access networks - passive optical networks (PON)
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Advanced PON architectures (WDM-PON, TWDM-PON, OFDMA-PON, etc.)
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Digital, electronic and optical processing for PON systems
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Signal processing for optical backhaul/fronthaul networks
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Signal processing for long-reach broadband access networks
Machine learning (ML) in optical communication
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Channel estimation and equalization
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Signal characterization and performance monitoring
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Component and device characterization
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Physical layer and network side optimization
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Optical signal processing for neural networks
Quantum communications
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QKD (signal processing, channel measurement, calibration, error correction and privacy amplification)
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Quantum random number generation
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Quantum digital signature
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Quantum computing
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Quantum neural networks