论述毫米波光载射频（radio over fiber,RoF）系统研究的新进展.发展了基于光学倍频（optical frequency multiplication,OFM）概念的毫米波光学生成理论与技术，包括通过电光调制器的高阶光波边模形成、光探测器自外差射频(radio frequency,RF)产生方法的推导、双向毫米波RoF系统的设计等；提出中频正交频分复用（orthogonal frequency division multiplexing,OFDM）毫米波调制的新方案，对光调制器非线性造成的OFDM信号的失真建立完整的数学模型，优化光调制度；同时，实现双向40 GHz RoF实验系统，传输速率达到100 Mbit/s.

Recent progresses in the research of millimeterwave radio on fiber (RoF) systems are reported. Based on the concept of optical frequency multiplication (OFM), the theory and techniques of photonic generation of millimeterwave have been developed. These include generation of highorder optical sidemodes using eletrooptic modulators, selfheterodyne radio frequency (RF) production in photodetectors, and design of bidirectional millimeterwave RoF systems. Intermediate frequency orthogonal frequency division multiplexing (OFDM) is used to modulate the millimeterwave carrier. A comprehensive mathematic model has been set up to analyze nonlinear distortion in OFDM signals induced by optical modulator. Several experimental RoF systems operating at 40 GHz have been implemented, achieving a transmission rate of 100 Mbit/s.