DWDM based system for optical generation and transmission of impulse radio UWB signals

This paper presents a simple technique for generation of Impulse Radio Ultra-wideband pulses in optical domain. This system can transmit the data in Giga-bits-per-second range for 32 users across a 1 km optical fiber link using Dense Wavelength Division Multiplexing (DWDM). A multiple access technique using Direct Sequence Ultra-wideband (DS UWB) pulses has also been presented. Moreover, we have analyzed the relationship between the input data rate and signal bandwidth and also studied the effect of pulse width on the bandwidth of a signal.