The Use of Pulse Frequency Modulation Technique for Optical Video Communication System

Abstract

Abstract: An optical video communication system is designed and constructed using pulse frequencymodulation (PFM) technique. In this work PFM pulses are generated at the transmitter using voltage controloscillator (VCO) of width 50 ns for each pulse. Double frequency, equal width and narrow pulses areproduced in the receiver be for demodulation. The use of the frequency doubling technique in such a systemresults in a narrow transmission bandwidth (25 ns) and high receiver sensitivity.