光电子技术, 2012, 32 (3): 206, 网络出版: 2013-01-17
基于相位调制的两种不同RoF链路性能分析与比较
Analysis and Comparison of the Performances in Two Different RoF Links Both Based on Phase Modulation
光载无线 相位调制器 链路增益 噪声系数 动态范围 调制指数 radio over fiber phase modulator RF gain RF noise figure SFDR modulation index
摘要
分析了基于相位调制的两种不同RoF链路模型及其性能参数,分别推导得出了这两种不同RoF链路的链路增益GRF、噪声系数NF以及动态范围SFDR的表达式,并对两种链路的性能进行比较。经过仿真后可以证明两条链路中都存在一个最优的调制指数,使得链路的性能达到最佳,且利用马赫增德尔干涉仪(MZI)的链路性能要优于利用光纤色散的链路性能。
Abstract
Both based on phase modulation, two different RoF link models are analyzed. The expressions for RF gain, RF noise figure and spurious-free dynamic range in the two different links are derived and compared respectively. Simulation results show that the performance parameters can be optimized by adjusting the signal modulation index both in the two links and the MZI link can outperform the fiber dispersion link.
李昕, 胡宗福, 曾鸣, 周游. 基于相位调制的两种不同RoF链路性能分析与比较[J]. 光电子技术, 2012, 32(3): 206. Li Xin, Hu Zongfu, Zeng Ming, Zhou You. Analysis and Comparison of the Performances in Two Different RoF Links Both Based on Phase Modulation[J]. Optoelectronic Technology, 2012, 32(3): 206.
PDF全文
