An optically powered radio over fiber remote unit using wavelength division multiplexing

Power over fiber and radio over fiber transmission have been combined in a single optical fiber using wavelength division multiplexing for the first time. It is shown that there is no impairment to the radio over fiber transmission performance from the power transmission link. There is however a power penalty caused by the insertion losses of the multiplexer and demultiplexer and potentially a further insertion loss depending on the type of transmission fiber used.