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This paper experimentally investigates the nonlinear performance and backscattering tolerance for a full-duplex bidirectional coherent WDM-PON with real-time Nyquist 16QAM transmitter. With 2×8×10 Gb/s over 50 km, the performance is evaluated for various pulse roll-off factors.
We experimentally demonstrate a multidimensional global optical spectral shaping optimization based on genetic algorithm for fiber nonlinearities mitigation in a 56-GBd PDM-QPSK transmission system. The proposed method increased maximum reach by 24%, reducing transmission penalties by up to 1.8 dB.
The impact of fiber dispersion on the performance of optical phase modulated impulse-radio-ultrawideband (IR-UWB) signals is experimentally investigated. 2Gbps BPSK IR-UWB over 78km fiber transmission is successfully achieved by using digital coherent detection.
Simultaneous detection of 5 Gbit/s baseband ASK data and optical phase encoded wireless signal (6 GHz RF carrier with 625 Mbaud 16QAM/QPSK data), on the same optical carrier, is experimentally demonstrated using the same software reconfigurable digital coherent receiver.
A novel cognitive receiver for modulation format recognition with reconfigurable carrier recovery scheme is proposed and experimentally demonstrated for phase modulated radio-over-fibre links. Demodulation of burst-mode mixed modulation formats (PSK and QAM) is demonstrated after 40km of transmission.
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