摘要
将波分复用无源光网络(WDM-PON)作为移动前传解决方案,研究了基于RSOA的WDM-PON移动前传网络在下行速率40Gb/s、上行速率10Gb/s时不同调制方式对系统性能的影响。上行信号采用不归零(NRZ)码,下行信号分别采用光双二进制(ODB)、改进型双二进制(MDB)、4阶强度调制(PAM-4)和差分相移键控(DPSK)调制方式。通过建立仿真系统,研究4种下行调制方式时的系统性能,测得了上/下行信号的眼图和Q值。
This paper taking WDM-PON as mobile fronthaul solution, studied the effect of different modulation schemes on the WDM-PON mobile fronthaul network system performance, which is based on the RSOA.The study was conducted at a downlink rate of 40 Gbit/s and an uplink rate of 10 Gbit/s. With uplink signals using no-return-to-zero（NRZ） modulation mode, the downlink signals use optical duobinary（ODB）, modified doubinary（MDB）,4 order pulse amplitude modulation（PAM-4）, differential phase shift keying（DPSK） modulation method respectively. In software, a simulation system is established to study the system performance of four descending modulation methods. The eye digram and Q values of the up/down link signals are detected.
出处
《光通信技术》
北大核心
2018年第2期9-12,共4页
Optical Communication Technology
关键词
波分复用无源光网络
反射型半导体光放大器
差分相移键控
4阶强度调制
wavelength division multiplexing PON （WDM-PON）
reflective semiconductor optical amplifi-er（RSOA）
differential phase shift keying （DPSK）
4 order pulse amplitude modulation （PAM-4）
