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Opt Express. 2010 Feb 1;18(3):2137-43. doi: 10.1364/OE.18.002137.

A WDM-OFDM-PON architecture with centralized lightwave and PolSK-modulated multicast overlay.

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  • 1School of Electronic Engineering, Beijing University of Posts and Telecommunications,10 XiTuCheng Road, Beijing 100876, China.


We propose and demonstrate a novel wavelength-division-multiplexing orthogonal-frequency-division-multiplexing passive-optical-network (WDM-OFDM-PON) architecture with centralized lightwave sources and polarization shift keying (PolSK) multicast overlay. The 10-Gb/s 16QAM-OFDM point to point (P2P) signal, 2.5-Gb/s multicast PolSK signal and 2.5-Gb/s on-off keying (OOK) upstream signal are experimentally demonstrated. After transmission over 25km standard single mode fiber (SMF), 1.5dB crosstalk between the downstream signals is eliminated by employing a low pass electrical filter at the PolSK receiver. The power penalty of the upstream OOK signal at BER of 10(-9) is less than 0.1dB.

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