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We demonstrate a novel distributed optical fiber sensor system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR). Both the phase and the amplitude of the Rayleigh scattering (RS) light can be demodulated based on I/Q demodulation and heterodyne detection using commercial available 100G integrated coherent receiver (ICR). The polarization fading problem in Φ-OTDR can be avoided by...
We propose and experimentally verify an independent component analysis (ICA) based channel equalizer in multiband PDM-CO-OFDM using only a few training symbols. Compared with the conventional channel equalizer, the ICA-based channel equalizer achieves better transmission performances and higher spectral efficiency.
In this paper we implement a first multi-gigabit real-time dual-polarization CO-OFDM receiver in a 2 times 2 multiple-input multiple-output (MIMO) configuration. The experimental setup consists of four 1.5 Giga samples per second (GS/s) high-speed analog-to-digital converters (ADC) and one Stratix III field-programmable gate array (FPGA). The signal streams are processed in real-time mode, and the...
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