title: High-contrast light-by-light switching and AND gate based on nonlinear photonic crystals.
abstract: We present a light-by-light photonic crystal configuration consisting of a bend waveguide with three embedded Kerr-type nonlinear rods and a T-branch waveguide. We show that such a configuration can also demonstrate all-optical AND gate operation with extremely high-contrast between the OFF state and ON state in its transmission. Because the presented photonic crystal configuration of all-optical light-by-light switching is simple, this facilitates fabricating practical all-optical devices and further large-scale optical integration.
authors.forename: Zhi-Hong
authors.initials: ZH
authors.lastname: Zhu
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Ye
authors.forename: Jia-Rong
authors.initials: JR
authors.lastname: Ji
authors.forename: Xiao-Dong
authors.initials: XD
authors.lastname: Yuan
authors.forename: Chun
authors.initials: C
authors.lastname: Zen