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We present N-dimensional multicasting by exploiting wavelength/frequency, orbital angular momentum (OAM) and polarization dimensions. 1-to-1100 multicasting (25 wavelengths × 22 OAM modes × 2 polarizations) of OFDM-16/32QAM signal is demonstrated in the experiment. All 1100-fold multicasted channels achieve BER <2e-3.
We experimentally demonstrate a 470.4-Gb/s superchannels consisting of 16 × 29.4-Gb/s densely-spaced OFDM/OQAM transmission over 2400-km SSMF with a novel alternative signals PAPR reduction scheme. With the nonlinearity improvement, an improvement of about 1 dB in Q factor and 1.5 dB in launch power over conventional OFDM/OQAM.
We experimentally demonstrated a 429.96-Gb/s OFDM/OQAM-64QAM transmission over 400-km standard single mode fiber on the 50 GHz ITU-T grid. The spectral efficiency is as high as 8.63 bit/s/Hz.
We compare the transmission performance of various bandwidth-efficient LDPC coding schemes. Equipped with 4 dB improvement in OSNR sensitivity, we demonstrate 1 Tb/s CO-OFDM over 1600 km SSMF transmission at spectral efficiency of 3.2 bit/s/Hz.
We experimentally demonstrate trellis-coded modulation coherent optical OFDM transmission at 1 Tb/s. The required OSNR for the 1-Tb/s signal can be improved by 2.6 dB at the BER of 10-3.
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