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实验完成了42.8 Gb/s差分相移键控(DPSK)信号和9.95 Gb/s开关键控(OOK)信号的混合传输。光纤链路总长410 km,由四个放大段组成。每个放大段由标准单模光纤(SSMF)和色散补偿光纤(DCF)构成,采用掺铒光纤放大器/分布式拉曼放大器(EDFA/DRA)混合放大,42.8 Gb/s DPSK信号采用单端检测。给出了差分相移键控信号与开关键控信号分别在单路和混合传输410 km后的眼图光谱图以及误码率曲线。
The experiment completed a mixed transmission of a 42.8 Gb / s Differential Phase Shift Keying (DPSK) signal and a 9.95 Gb / s On-Off Keying (OOK) signal. The total length of the fiber link is 410 km and consists of four amplification sections. Each amplification stage consists of a standard single-mode fiber (SSMF) and a dispersion-compensated fiber (DCF), mixed with an EDFA / DRA hybrid amplification, a 42.8 Gb / s DPSK signal with single-ended detection . The eye diagram and bit error rate curve of differential phase shift keying and on / off keying signals after 410 km transmission are given respectively.