Duty-Cycle Division Multiplexing: Alternative for High Speed Optical Networks

概要

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Performance of $3\times 10$ Gbps duty-cycle division multiplexing (DCDM) is analyzed. The channel demultiplexing is performed electronically at single user bit rate (10 Gbps). At 30 Gbps, null-to-null spectral width of 80 GHz is measured for DCDM technique which is 33.3% less compared to 30 Gbps conventional return-to-zero (RZ). In this system, the worst channel required a receiver sensitivity of around $-25.6$ dBm at bit error rate (BER) $10^{-9}$. The chromatic dispersion tolerances of the system are 210.5 and 236 ps/nm for the worst and the best channel respectively.
2009-09-25