Principle Of Light Transmission
The electrical signal generated by the control unit is converted to an optical signal by an internal transmitter module and sent along the fiber optic bus. The fiber core carries the light beam to a receiver module which converts the light signal back to a usable electrical signal.
In order to prevent the light from escaping, the fiber core is enclosed by a cladding layer. The cladding is reflective and reflects light back into the core, thus making it possible to transmit light along the fiber.