摘要
为了有效解决高频毫米波信号源产生困难的问题,提出了一种基于级联双平行偏振调制器(DP-Pol M)的无光滤波16倍频可调毫米波信号生成方案。首先合理设置第一个DP-Pol M射频驱动电压和偏振角度,可以获得光载波和4阶边带信号,所得信号被送入第二个DP-Pol M,其参数设置和第一个DP-Pol M一样,可以获得8阶边带信号,经光电转换后得到了射频杂散抑制比(RFSSR)为37d B的160GHz毫米波信号。针对非理想因素如调制指数精度和移相器相位偏差也作了仿真和分析,结果证明该方案系统稳定,生成的信号频谱纯度高,具有很高的频率可调谐性。
In order to effectively solve the problem of high-frequency millimeter-wave source generation, a ill- terless frequency 16-tupling multiplication tunable millimeter-wave signal generation scheme based on cas- cade dual parallel polarization modulator （DP-PolM） is proposed. Firstly, the optical carder and 4 order side- bands are obtained by properly setting RF drive voltage and polarization angle of the first DP-PolM, the gener- ated signals are sent to the second DP-PolM which parameters are same with the first DP-PolM, then, the 8 order sidebands are obtained. The 160GHz millimeter-wave signal is generated with a radio frequency side- band suppression ratio （RFSSR） of 37dB after photoelectric conversion. Further, the non-ideal factors such as modulation index precision and phase deviation of phase shifters are also analyzed, the results show that the system is stable, the signal spectrum purity is high and the frequency tunability is wide.
作者
洪赞扬
王天亮
陈阳
袁牧野
王金华
HONG Zanyang;WANG Tianliang;CHEN Yang;YUAN Muye;WANG Jinhua(Shanghai Institute of Satellite Engineering,Shanghai 201109,China)
出处
《光通信技术》
北大核心
2018年第10期10-13,共4页
Optical Communication Technology
基金
国家自然科学基金(NSFC61671305)资助
