Implementation for high-speed coherent optical orthogonal frequency division multiplexing system

Abstract

Abstract:

Coherent optical orthogonal-frequency-division-multiplexing (CO-OFDM) has drawn significant attention in optical transmissions as an attractive modulation format for the forthcoming 100Gb/s Ethernet. However, CO-OFDM system requires high-speed digital-to-analog converters (DAC) and analog-to-digital converters (ADC), which may not be available today. To resolve ADC/DAC bandwidth bottleneck, with the help of OBM and polarization division multiplexing (PDM), 100Gb/s CO-OFDM system based on OBM is presented. With this scheme, simulation is done to validate the feasibility of the system model and algorithm. The result shows that, the performance of MIMO CO-OFDM system based on OBM is maintained above 13dB at 0-GHz channel spacing for 800km standard single mode fiber (SSMF) transmission without any inline dispersion compensation and polarization controller (PC) and the DAC/ADCs do not need to operate at extremely high sampling rate.

Key words: optical communications, orthogonal frequency division multiplexing, long-haul transmission, polarization division multiplexing

CLC Number:

TN929.5

HAO Yao-hong, LI Yu-quan, Wang Rong, HUANG Wei-wei. Implementation for high-speed coherent optical orthogonal frequency division multiplexing system[J]. J4, 2012, 29(2): 242-246.

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