应用于时分复用无源光网络上行信号的光功率均衡器  

An Optical Power Equalization of Upstream Traffic in TDM-PON

作　　者：陈晓文[1,2] 程恩[3] 

机构地区：[1]福建信息职业技术学院,福建福州350003 [2]万能科技大学电子资讯学院,台湾中坜32061 [3]厦门大学信息科学与技术学院,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2012年第5期829-833,共5页Journal of Xiamen University：Natural Science

基　　金：台湾"经济部"科技专案计划项目(7301XS2410)

摘　　要：研究了利用光注入锁定法布里-珀罗激光器(FP-LD)进行时分复用无源光网络(TDM-PON)上行信号的光功率均衡.通过二次光注入锁定FP-LD实现上行信号功率均衡,由一外部单纵模激光注入锁定光网络单元(ONU)上行信号的输出波长,光谱稳定的上行光注入锁定位于光线路终端(OLT)的功率均衡器FP-LD.本功率均衡器可以使上行光功率由-10～-25dBm的功率变化量变为1.2dB最大功率变化量.并测试功率均衡器对上行光信号传输品质影响.An optical power equalization of upstream traffic in TDM PON using injection-locked Fahry-Perot lasers was experimentally investigated. We used two stage injection locking FP-LD technique to realize the power equalization of the upstream signals. A single-longitudinal-mode I.D was applied as an external injection light source to lock the output wavelength of the ONU transmitters. The power equalizer FP-LD in OLT was mode-locked by the upstream lightwave with stable spectrum. A 1.2 dB maximal power variation under a dynamic upstream power range of --25 dBm to -10 dBm was achieved by using the proposed power equalizer. We also investigated the influence of the power equalizer on the transmission quality of the upstream traffic.

关 键 词：光通信 光功率均衡 光注入锁定 法布里-珀罗激光器 时分复用无源光网络 

分 类 号：TN913.7[电子电信—通信与信息系统]