中国激光, 2008, 35 (12): 1910, 网络出版: 2008-12-17   

采用两个级联外部调制器产生四倍频光载毫米波的光纤无线通信系统

A Radio Over Fiber System Based on Two External Modulator for Optical Millimeter Generation with Photonic Frequency Quadruple
作者单位
1 湖南大学计算机与通信学院,微纳光电器件及应用教育部重点实验室, 湖南 长沙 410082
2 湘潭职业技术学院通信工程系, 湖南 湘潭 411102
摘要
研究了一种采用两个级联外部调制器基于光载波抑制原理产生四倍频毫米波的光纤无线通信(ROF)系统。在中心站利用电混频器产生副载波复用信号,通过第一个外部调制器产生两倍射频(RF)信号的光载毫米波信号,再通过第二个外部调制器产生四倍射频信号的光载毫米波。实验显示采用频率为10 GHz的射频信号源和2.5 Gbit/s的数据基带信号混频通过两个级联外部调制器后产生毫米波的频率为40 GHz,并且在单模光纤中传输距离达20 km,功率代价小于2 dB。
Abstract
A radio over fiber (ROF) system to generate optical millimeter wave with four time frequency of the local oscillator frequency using two-cascaded intensity modulators based on optical carrier suppression scheme was investigated numerically and experimentally. In the central office, the upstream data were mixed with the radio frequency (RF) clock to generate a electrical signal, and then an external modulator was used to generate a optical millimeter with double freqnency of RF clock, after the second external modulator, the optical millimeter wave was generated with frequency quadruple. By this scheme, a 40 GHz millimeter wave was generated by the frequency mixing of the 10 GHz signal source and the 2.5 Gbit/s baseband data signal passing through the two external modulator. After transmission over single-mode fiber (SMF) 20 km, the power penality is less than 2 dB.

陈罗湘, 卢嘉, 董泽, 陈林, 余建军. 采用两个级联外部调制器产生四倍频光载毫米波的光纤无线通信系统[J]. 中国激光, 2008, 35(12): 1910. Chen Luoxiang, Lu Jia, Dong Ze, Chen Lin, Yu Jianjun. A Radio Over Fiber System Based on Two External Modulator for Optical Millimeter Generation with Photonic Frequency Quadruple[J]. Chinese Journal of Lasers, 2008, 35(12): 1910.

本文已被 5 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!