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This paper presents a performance evaluation of different encoding schemes based on phase-encoding techniques. Conventional multiplexing techniques and multiple-access schemes are reviewed, and the transmitter and receiver architectures are outlined. Different encoding schemes are developed based on the standard spread-spectrum technique and the performance of each scheme is tested in an optical network...
In this paper, the technique of asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) has been extended to a two dimensional (2D) optical communication system. Simulation results for the performance of 2D spatial ACO-OFDM (SACO-OFDM) in the presence of additive white Gaussian noise (AWGN) are presented. The bit error rate (BER) and optical power efficiency of SACO-OFDM...
We propose and demonstrate the optical multiband receiving method which supports transmission of a 16-QAM, 213.7-Gb/s (189.7-Gb/s) DDO-OFDM super-channel over 720-km SSMF. After transmission all the 9 OFDM bands exhibit BERs lower than the FEC threshold (BER = 3.8e-3).
This paper presents the implementation of a real-time electronic polarization tracking algorithm which enables robust optical polarization-multiplexed synchronous quadrature phase shift keying transmission with DFB lasers. The achieved BER at a data rate of 2.8 Gbit/s is well below the FEC threshold.
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