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A novel time-interleaved DPSK remodulation scheme in WDM-PON is proposed in this paper. Downstream and upstream signals achieved error-free performance at 5-Gb/s with negligible penalty and enhanced tolerance to Rayleigh backscattering (RBS).
We demonstrated for the first time 80 to 40 Gb/s OTDM-DPSK demultiplexing using a single SOA assisted by offset-filtering. Error free performance is achieved with an average power penalty of 5.5 dB.
Time-interleaved phase remodulation is proposed to realize broadcast transmission for WDM-PONs. Simultaneous transmission of 5-Gb/s bidirectional unicast data and broadcast data is demonstrated at the same carrier wavelength over a 20-km SMF.
We generate 20-Gb/s return-to-zero differential quadrature phase-shift-keying (RZ-DQPSK) signal using a directly modulated chirp managed laser (CML), without requiring any differential encoder and optical phase modulator.
We demonstrate simultaneous demodulation of multiple 40 Gbit/s WDM NRZ-DPSK channels using a single silicon microring resonator with FSR of 100 GHz. Bit error measurements show very good performances for both through and drop demodulations for all channels.
Enhanced wavelength offset tolerance is achieved by using a 25-ps DI's destructive port for the 10-Gb/s downstream DPSK signal demodulation in WDM-PONs. The constructive port output is used for upstream remodulation to simplify ONU structure.
A novel phase remodulation scheme for 10-Gb/s WDM-PON is proposed and demonstrated. Downstream DPSK signal with a reduced modulation depth facilitates upstream phase remodulation and Rayleigh noise suppression. High extinction-ratio is attained in downstream/upstream demodulation.
We propose and experimentally demonstrate a WDM-PON with 10-Gb/s IRZ downstream point-to-point signals, 10-Gb/s DPSK downstream multicast signals, and 10-Gb/s NRZ upstream signals. The multicast control is achieved by simple electronic synchronization adjustment.
An all-optical minterm generator for three-input NRZ-DPSK signals is proposed and demonstrated based on SOAs and delay interferometers. Results are derived in OOK format. Experiment with two DPSK inputs is also carried out for comparison.
We present ultrawideband doublet and triplet generation from NRZ-DPSK signals based on optical fiber and filter. Doublet and triplet are obtained by locating the optical carrier at the peak and slope of the filter, respectively.
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