多业务传输的WDM-ROF-PON系统研究  

Research on WDM-ROF-PON systems for multi-service transmissions

作　　者：潘武[1] 雷达[1] 李柚[1] 尹怡辉[1] 

机构地区：[1]重庆邮电大学光电子工程学院,重庆400065

出　　处：《光通信研究》2012年第5期20-23,共4页Study on Optical Communications

摘　　要：针对多业务传输的WDM-ROF-PON(融合光载无线技术的波分复用-无源光网络)系统的稳定性和业务间串扰问题,设计了一种能同时传输两种无线业务的WDM-ROF-PON系统。实验过程中,对下行链路的4路ROF信道进行了测试,系统能同时传输60GHz 2.5Gbit/s的毫米波信号和5GHz 155Mbit/s的DPSK(差分相移键控)信号,传输距离为20km。各信道中低频业务传输20km后功率代价为0.4～2.8dB,毫米波信号传输20km后功率代价为1.5～3.2dB;仅传输毫米波业务时,接收机灵敏度提升0.6～2dB。实验结果表明,各信道中两种业务的信号传输性能均良好,系统较稳定,低频业务对毫米波业务的干扰较小。In view of the stability of and inter-service interference effects on WDM-ROF PON systems for multi-service trans- mission, a WDM-ROF--PON system for simultaneous transmission of two kinds of wireless services is designed. In the experi- ment, tests are performed on four ROF channels in downlinks, the results of which show that the system can simultaneously transmit 60 GHz 2.5 Gbit/s millimeter-wave signals and 5 GHz 155 Mbit/s DPSK signals for 20 kin. In each channel, the power penalty in intermediate or lower frequency transmission is 0.4~ 2.8 dB and in the millimeter-wave transmission 1.5 3.2 dB and in millimeter-wave transmission only, the receiver sensitivity is improved by 0.6~2 dB. These results show that the signal transmission performances for both services in every channel are good, the system is stable and the millimeter-wave services are subject to minor interferences from lower frequency services.

关 键 词：光载无线 波分复用 多业务系统 光毫米波 无源光网络 

分 类 号：TN915[电子电信—通信与信息系统]