title: Ultra-flattened and low dispersion in engineered microfibers with highly efficient nonlinearity reduction.
abstract: We propose an engineered microfiber with nano-scale slots that produce ultra-flattened and low dispersion of ±10 ps/(nm · km) over a 340 nm wavelength range. It is comparable with the results in photonic crystal fibers and planar slot waveguides, but can be hardly realized in conventional circular microfibers. By confining the light in a low nonlinearity air slot, the nonlinear coefficient can be greatly reduced. With the unique geometry and excellent performance, the slot microfiber offers large potential in miniature fiber devices for high-speed telecom applications.
authors.affiliation: College of Engineering and Applied Sciences and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Guo
authors.forename: Jun-long
authors.initials: JL
authors.lastname: Kou
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.forename: Yan-qing
authors.initials: YQ
authors.lastname: Lu