华南师范大学学报(自然科学版)
華南師範大學學報(自然科學版)
화남사범대학학보(자연과학판)
JOURNAL OF SOUTH CHINA NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)
2015年
1期
22-25
,共4页
李广%陈银%黄旭光
李廣%陳銀%黃旭光
리엄%진은%황욱광
光电双臂相干调制%光双二进制%Radio over Fiber%光纤通信%无线通信%LTE Advanced%eNode B
光電雙臂相榦調製%光雙二進製%Radio over Fiber%光纖通信%無線通信%LTE Advanced%eNode B
광전쌍비상간조제%광쌍이진제%Radio over Fiber%광섬통신%무선통신%LTE Advanced%eNode B
photoelectric double arms coherent modulation%optical duo-binary%radio over fiber ( RoF)%optical fiber communication%wireless communication%LTE Advanced%eNode B
提出并计算机仿真证明了基于二级光电双臂相干调制及双二进制光信息编码技术实现超高速超长距离光纤微波传输( Radio over Fiber)的系统设计方案.通过第一级光电双臂相干调制构建光双二进制信号,其信号占用频谱带宽比NRZ码降低50%.通过第二级光电双臂相干调制加载40 GHz超高频载波信号,实现光纤微波传输.计算机仿真结果分析表明:CW激光光源发射功率为0 dBm,经过多级EDFA光信号放大与色散补偿光纤,在色散系数为17 ps/( nm· km),衰减系数为0.2 dB/km的标准单模光纤中单通道传输,系统码元传输速率可达40 Gb/s、传输距离1500 km以上.
提齣併計算機倣真證明瞭基于二級光電雙臂相榦調製及雙二進製光信息編碼技術實現超高速超長距離光纖微波傳輸( Radio over Fiber)的繫統設計方案.通過第一級光電雙臂相榦調製構建光雙二進製信號,其信號佔用頻譜帶寬比NRZ碼降低50%.通過第二級光電雙臂相榦調製加載40 GHz超高頻載波信號,實現光纖微波傳輸.計算機倣真結果分析錶明:CW激光光源髮射功率為0 dBm,經過多級EDFA光信號放大與色散補償光纖,在色散繫數為17 ps/( nm· km),衰減繫數為0.2 dB/km的標準單模光纖中單通道傳輸,繫統碼元傳輸速率可達40 Gb/s、傳輸距離1500 km以上.
제출병계산궤방진증명료기우이급광전쌍비상간조제급쌍이진제광신식편마기술실현초고속초장거리광섬미파전수( Radio over Fiber)적계통설계방안.통과제일급광전쌍비상간조제구건광쌍이진제신호,기신호점용빈보대관비NRZ마강저50%.통과제이급광전쌍비상간조제가재40 GHz초고빈재파신호,실현광섬미파전수.계산궤방진결과분석표명:CW격광광원발사공솔위0 dBm,경과다급EDFA광신호방대여색산보상광섬,재색산계수위17 ps/( nm· km),쇠감계수위0.2 dB/km적표준단모광섬중단통도전수,계통마원전수속솔가체40 Gb/s、전수거리1500 km이상.
A high speed long distance radio over fiber system based on double photoelectric arms coherent modula-tion and optical duo-binary coding technology is proposed and demonstrated.Optical duo-binary signal is built by the first photoelectric arms coherent modulation, in which occupancy bandwidth frequency spectrum is reduced by half than NRZ code.40 GHz ultra high frequency microwave signal is loaded through second levels of photoelectric arms coherent modulation.The simulation results show that the 40 Gb/s data and UHF microwave with 40 GHz are successfully transmitted over 1 500 km distance of a single-mode fiber with a dispersion of 17 ps/( nm· km) , at-tenuation of 0.2 dB/km, a light source power of 0 dBm, EDFA and dispersion compensation optical fiber.