The comparison of different modulation formats, such as OOK, RZ-DPSK and NRZ-DPSK, with different amplification functions, e.g.SOA and EDFA, are also illustrated.

• 也进一步探讨不同的调变信号（如OOK，RZ-DPSK，NRZ-DPSK）与不同放大机制（如掺铒光纤放大器与半导体光学放大器）在传输系统里的影响。