title: Slow-light all-optical soliton diode based on tailored Bragg-grating structure.
abstract: All-optical soliton diode (AOSD) is proposed based on a sandwich nonlinear Bragg-grating structure: a linearly chirped Bragg-grating linked to a uniform Bragg-grating and again to a chirped Bragg-grating. The nonreciprocity is achieved by introducing two spatially asymmetric chirped Bragg-gratings with optical nonlinearity. High transmission ratio up to 150 is obtained when launching a picosecond Gaussian pulse into the setting. We find that such pulses in a form of solitons propagate at a rather small velocity (<0.03c) when pulse wavelength is selected in the vicinity of photonic bandgap.
authors.forename: Hongji
authors.initials: H
authors.lastname: Li
authors.forename: Zhigui
authors.initials: Z
authors.lastname: Deng
authors.forename: Jiasheng
authors.initials: J
authors.lastname: Huang
authors.forename: Shenhe
authors.initials: S
authors.lastname: Fu
authors.forename: Yongyao
authors.initials: Y
authors.lastname: Li