Hyder Abdul; Ridha Salih; Labeab O. A. Ghani
Abstract
The optical communication system consists of a transmitter uses a laser beam ofa wavelength 650 nm as a carrier in free space, and a receiver uses PIN diode as adetector . In both sides ...
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The optical communication system consists of a transmitter uses a laser beam ofa wavelength 650 nm as a carrier in free space, and a receiver uses PIN diode as adetector . In both sides Intensity modulation (IM) technique has been used to transmitvideo signal of a frequency range (0~5) MHz band width. The video signal fed bycamera. The transmitted signal amplified and converted to a modulated intensity oflaser beam and sent to the receiver, the receiver converts the laser signal to a weakelectrical signal by the detector; the signal will be amplified and converted back to ananalogue signal to produce the original transmitted signal, and monitored by TV set in(black and white ) . The transmission range was 5 m , that can be developed letter forlonger range.
