光载无线电中新型光信息编码调制组合技术研究  

Study of New Type of Optical Information Coding and Modulation Technology in Radio over Fiber

作　　者：李广[1] 陈银[2] 黄旭光[2] 

机构地区：[1]广东科学技术职业学院,广东珠海519090 [2]华南师范大学光子信息技术广东省高校重点实验室,广东广州510631

出　　处：《激光与光电子学进展》2015年第4期71-74,共4页Laser & Optoelectronics Progress

基　　金：资助基金:国家自然科学基金(61077038);广东省高等院校学科建设专项资金(2012KJCX0038)

摘　　要：提出一种新型光信息编码调制组合方案,该方案采用双重光学双臂外部调制和新型光信息编码实现超远距离高速光载无线电(Ro F)传输通信。通过第一次光学双臂外部调制产生新型光学信号,其信号码型有效带宽比普通光学非归零码少了一半。通过第二次光学双臂外部调制把超高频毫米波信号调制到光波上,实现光载无线电传输。通过高级光学系统专用开发套件(Opti System)模拟仿真得出:在眼图显示正常、传输系统误码率可控范围内,该光纤无线电传输系统的码元传输距离为1.6×106m,速度高达40 Gb/s。A new type of optical information coding and modulation combination scheme is proposed, and the high speed long distance radio over fiber （RoF） communication is realized by using double photoelectric arms coherent modulation and new optical information coding technology. In the first modulation, the effective bandwidth of signal code is the half of the effective bandwidth of non return to zero code of ordinary optical. In the second modulation, the ultra-high frequency millimeter wave is modulated to the light wave in order to realize radio over fiber transmission. By advanced optical system development software（OptiSystem） simulation, the simulation results show that when eye diagram is nomal and the bit error rate of transmission system can be controlled, the transmission distance of code in radio over fiber communication system is 1.6×10^6 m, and the speed is 40 Gb/s.

关 键 词：光纤光学 光纤无线电 光电外部相干调制 新型光信息编码 微波通信 射频拉远 

分 类 号：TN929.11[电子电信—通信与信息系统]