Analysis of an Impulse Radio Ultra Wideband over fiber scheme based on photonic pulse generation technique

A method to implement a radio over fiber system using optically generated Impulse Radio Ultra Wideband signal has been proposed and investigated. In this technique, a continuous lightwave from a laser diode is phase modulated by a pulse pattern generator and sent to a Fiber Bragg Grating which is used as a frequency discriminator. Depending on the location of the optical carrier at the linear or quadrature slope of reflection spectrum of FBG, a Gaussian monocycle or doublet would be generated. This optical signal is then transmitted through a SMF link to the remote base stations where photodetectors convert the signal and remote antenna units transmit the IR-UWB signals. Performance of the system is evaluated through simulation and different criteria are analyzed with the simulation result.