基于RSOA再调制WDM-PON的移动前传调制方式  

Modulation method of mobile fronthaul based on RSOA re-modulation WDM-PON

作　　者：张春蕾[1] 赵凯 杨勋发 

机构地区：[1]兰州交通大学电子与信息工程学院,兰州730070

出　　处：《光通信技术》2018年第2期9-12,共4页Optical Communication Technology

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.

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 

分 类 号：TN929[电子电信—通信与信息系统]