Fiber-optic technology for antenna signal transmission and distribution: present state and perspectives


  • Alexander N. Bratchikov Moscow Aviation Institute, Russian Federation
  • Dmitriy I. Voskresenskii Moscow Aviation Institute, Russian Federation
  • T. A. Sadekov Moscow State Aviation Institute, Russian Federation



This paper reflects the state-of-the-art of a new and rapidly growing field [1], dealing with fiber-optic systems for antenna signal transmission. The two principal configurations of fiber-optic links with intensity modulation and direct photodetection (IMDD) are analyzed, using direct (DM) and external modulation (EM) of optical carrier by antenna signals. The basic system parameters of both configurations are compared: frequency bandwidth, insertion loss of RF signals, noise performance, linearity and dynamic range. The principal problems are formulated, which restrict wide applications of fiber-optic systems for antenna signal transmission in optically based antennas in radar and communication electronic complexes. The modifications of fundamental IMDD fiber link schemes are considered, providing successful solution of mentioned problems. Examples of practical IMDD fiber link applications are discussed.


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