基于四波混频同时传输基带信号的ROF系统  

A novel four-wave mixing simultaneous transmission baseband signals based radio-over-fiber systems

作　　者：张倩[1] 肖赵栋[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《光通信研究》2010年第3期64-66,共3页Study on Optical Communications

摘　　要：文章分析了用四波混频产生边带并传输基带信号的光纤无线通信(ROF)系统。该系统中心站处产生两对载波抑制边带,一对传输下行链路信号,另一对承载基带信号并在基站传输上行链路信号。通过仿真得到的系统光谱图、误码率曲线表明:加入基带信号传输后,下行信号的能量损耗不变,基带信号和上行信号却有较好的抗色散能力。A Radio-Over-Fiber（ROF） communication system is given and analyzed,in which Four-Wave Mixing（FWM） is used to generate sideband and transmit baseband signals.Two pairs of optical carrier suppression sidebands are generated in its central station,one transmits the downlink signals and the other carries the baseband signals and transmits the uplink signals at the base station.The system spectrum and Bit Error Ratio（BER） curve obtained by simulation indicate that when the baseband signals are coupled,the energy penalty of the downlink signals remains unchanged,while the baseband and uplink signals have better dispersion resistance.

关 键 词：光纤无线通信 四波混频 基带信号 载波抑制 下行链路 

分 类 号：TN929.11[电子电信—通信与信息系统]