Indoor Communications Applying an Optical Backbone

The wireless indoor communication system applying an optical transparent backbone provides an economic and flexible approach for local area networks in office buildings. The performance of the system is enhanced by assigning specific subcarriers for the individual picocells which enables the transmission of the wireless channels without altering their modulation format. This method allows for a simple, and low-cost communication system. Cascadability is critically important, because several electrical subcarriers are transmitted on the same optical signal. It is shown by numerical simulation and measurement that SOA modulator provides acceptable nonlinear distortion for SubCarrier multiplexed telecommunication systems. It demand more advanced amplifier-modulator working state planning. The temperature and the optical reflection have also important role in linearity.