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In this paper, we experimentally demonstrate 22.4-Gb/s optical OFDM transmission over 1000 km SSMF with polarization multiplexing (POLMUX) and direct detection. To the best of our knowledge, this is the longest reach directly-detected POLMUX-OFDM experiment reported.
We report the first experimental demonstration of 10 Gb/s free-space optical transmission using orthogonal frequency division multiplexing (OFDM). The OFDM system provides superior performance, with a 3 dB improvement in receiver sensitivity over NRZ OOK.
We propose a new coherent optical OFDM system architecture using self optical carrier extraction. It requires simplified DSP at the coherent receiver. The system shows good tolerance to phase noise, laser linewidth, and fiber nonlinearity.
We proposed a novel I/Q multiplexing technique for high-speed optical OFDM using complementary spectral coding. By providing code orthogonality close to coherent OCDMA, we simulated the transmission of 16-QAM OFDM at ~30 Gb/s for PON applications.
In this paper, we show OFDM can adaptively compensate for large all-order PMD without requiring feedback. We demonstrate error-free transmission on a 1920km 40xlOGb/s DWDM link with 48ps mean DGD in presence of fiber nonlineariry.
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