title: All-optical UWB signal generation and multicasting using a nonlinear optical loop mirror.
abstract: An all-optical scheme for ultra-wideband (UWB) signal generation (positive and negative monocycle and doublet pulses) and multicasting using a nonlinear optical loop mirror (NOLM) is proposed and demonstrated. Five UWB signals (1 monocycle and 4 doublet pulses) are generated simultaneously from a single Gaussian optical pulse. The fractional bandwidths of the monocycle pulses are approximately 100% while those of the doublet pulses range from 100% to 133%. The UWB signals are then modulated using a 2(15)-1 pseudorandom bit sequence (PRBS) and error-free performance for each multicast channel is obtained.
authors.affiliation: Wuhan National Laboratory for Optoelectronics, College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
authors.forename: Tianye
authors.initials: T
authors.lastname: Huang
authors.forename: Jia
authors.initials: J
authors.lastname: Li
authors.forename: Junqiang
authors.initials: J
authors.lastname: Sun
authors.forename: Lawrence R
authors.initials: LR
authors.lastname: Chen