作者: Jinlong Wei , Nicklas Eiselt , Helmut Griesser , Klaus Grobe , Michael H. Eiselt
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摘要: We demonstrate the first known experiment of a real-time end-to-end 40-Gb/s pulse amplitude modulation (PAM)-4 system for next-generation access applications using 10-Gb/s class transmitters only. Based on measurement PAM system, low-cost upstream and downstream link power budgets are estimated. Up to 27 25 dB 10- 20-km standard single-mode fiber links erbium-doped amplifiers (EDFA) preamplifiers achieved. For booster EDFAs avalanche photodiode receivers, 26.5 24.5 dB feasible SMFs, respectively. In addition, we show that colorless PAM-4 transmission over SMF in C-band is achievable.