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This paper proposes a novel manipulated rotating polarization switched quadrature phase shift keying (MR-PS-QPSK) technique, and correlated constant modulus algorithm (CMA). The latter utilizes the correlation between PS-QPSK symbols in X/Y polarizations to lock the phase of outputted X/Y signals. Then the X/Y signals are merged according to recovered switching bit, which suppresses the noise and...
We propose a fading-free direct detection method for transmission of complex-value OFDM signal in metro distances. By using two orthogonal optical carriers, an 82-Gb/s dual-band transmission is demonstrated over 320-km SSMF within only 30-GHz electrical bandwidth.
We experimentally demonstrate a sub-band wavelength conversion scheme based on four-wave mixing in high-nonlinear fiber for multiple Tb/s-class superchannel coherent optical orthogonal frequency-division multiplexing networks. Combined with the wavelength selective switches in reconfigurable optical add/drop multiplexers, the overlapped spectra are efficiently relocated and almost seamlessly formed...
In this paper, we have experimentally demonstrated joint optical switching and residual dispersion compensation using wavelength selective switch (WSS)-based reconfigurable optical add/drop multiplexer (RODAM). It is shown that a WSS-based ROADM can effectively compensate the residual chromatic dispersion without employing additional optical components while performing the optical switching in dynamic...
We experimentally demonstrate a Tb/s optical transport network based on CO-OFDM superchannel employing two types of ROADMs. The functional operations of bidirectional communication over single-fiber links, optical channel switching, and sub-band switching are verified.
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