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What is a Free Space Optical System?
A Free Space Optical system is a point-to-point, Infra red, wireless laser transmission designed for the interconnection of two points which have a direct line of sight. The systems operate by taking a standard data or telecommunications signal, converting it into a digital format and transmitting it through free space. The carrier used for the transmission of this signal is Infra red light and is generated by either high power LED or low power laser diode(s).
The easiest way to visualise how the systems work is to imagine two points interconnected with fibre optic cable then remove the fibre. The basic principles for the transmission of a signal along a fibre are the same as for transmission through free space.
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