【摘要】 实验研究了一种采用单个电光调制器产生光毫米波的方法和相应的全双工无线通信系统。在中心站采用电混频器产生电毫米波,然后再利用电光制器产生双边带信号。利用光交错复用器将中心载波和双频一阶边带信号分离。双频一阶边带用于产生2倍射频信号的光毫米波,而中心光载波用来作为上行链路的光载波。实验显示采用频率为20GHz射频信号产生光毫米波的频率为40GHz,而且将下行链路和上行链路中2.5Gbit/s的数据在单模光纤中传输距离达20km,而功率代价均小于0.5dB。更多还原

【Abstract】 A novel scheme to generate an optical millimeter-wave and a full-duplex radio-over-fiber system by using one optical modulator was proposed and experimentally demonstrated.A mixer was employad to generate electrical millime-ter-wave,and single-arm electronic-optical modulator to generate double sideband signals.Then an optical interleaver is employed to separate the spectrum of the double-sideband signals.The separated first-order sidband modes were used to generate optical millimeter-wave with double RF frequency,while the separated optical carrier was reused for upstream connection.The experiment results show that the 40GHz optical millimeter-wave will be generated by 20GHz RF re-source,and 2.5Gbit/s downstream and upstream data can be transmitted over 20km in fiber.更多还原