title: Generation of ultra-wideband triplet pulses based on four-wave mixing and phase-to-intensity modulation conversion.
abstract: We propose and demonstrate a novel scheme to generate ultra-wideband (UWB) triplet pulses based on four-wave mixing and phase-to-intensity modulation conversion. First a phase-modulated Gaussian doublet pulse is generated by four-wave mixing in a highly nonlinear fiber. Then an UWB triplet pulse is generated by generating the first-order derivative of the phase-modulated Gaussian doublet pulse using an optical filter serving as a frequency discriminator. By locating the optical signal at the linear slope of the optical filter, the phase modulated Gaussian doublet pulse is converted to an intensity-modulated UWB triplet pulse which well satisfies the Federal Communications Commission spectral mask requirements, even in the extremely power-restricted global positioning system band.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China. liwei05@semi.ac.cn
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Li Xian
authors.initials: LX
authors.lastname: Wang
authors.forename: Werner
authors.initials: W
authors.lastname: Hofmann
authors.forename: Ning Hua
authors.initials: NH
authors.lastname: Zhu
authors.forename: Dieter
authors.initials: D
authors.lastname: Bimberg
mesh_terms: D003198:Computer Simulation; D008027:Light; D015233:Models, Statistical; D012542:Scattering, Radiation