RF signal spectral analysis at the output of erbium doped fiber amplifier in the remote heterodyning mode


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




Among the large quantity of possible optical fiber channel configurations for transmission and distribution of microwave and millimeter wave antenna signals the channels of great interest are the fiber links with optical fiber amplifiers operating in the remote heterodyning mode. These channels provide simultaneous decision of the two principal problems of analog fiber links: problem of insertion loss and problem of frequency bandwidth [1]. Insertion loss level in fiber channel with direct laser diode modulation is about 15-30 dB, that restricts the number of antenna elements, fed by one laser diode up to Мmax= 7…25.


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Microwave components and circuits, fiber-optic links