作者: Jinlong Wei , Qixiang Cheng , David G. Cunningham , Richard V. Penty , Ian H. White
关键词:
摘要: Hybrid multiband (HMB) CAP/QAM transmitter/receiver systems are proposed for the first time. Simulation results provided to show feasibility of 100 Gb Ethernet links employing a single-laser source transmitting HMB CAP-16/QAM-16, CAP-32/QAM-32, and CAP-64/QAM-64 signals. The hybrid scheme has low sensitivity directly modulated laser nonlinearities. We found that QAM receivers bring about identical jitter tolerance ideally phase compensated CAP receivers, more practical since no tracking compensation required. Compared with case using standard non receiver, use modified QAM-16/32/64 receiver significantly lowers system timing in multiband, as well single-band case. Results also increasing number bands causes increased power margin. For conditions ±6 ps, three optimum band counts identified be capable supporting Gb/s transmission over 15-km SMF.