title: Directional couplers operated by resonant coupling in all-solid photonic bandgap fibers.
abstract: We have proposed directional couplers operated by resonant coupling in all-solid photonic bandgap fibers structure which consist of a cladding with an array of high-index rods in silica background, two cores formed by omitting two rods, and some defect rods introduced by reducing the diameter of the high-index rods between the cores. The resonant effect induced by the avoided crossing between core-guided supermodes and defect-guided modes significant decreases the coupling length. The directional couplers proposed in this paper are almost polarization independent and have potential application in realizing integrating all-fiber communication devices.
authors: Zhi
authors: Z
authors: Wang
authors: Yange
authors: Y
authors: Liu
authors: Guiyun
authors: G
authors: Kai
authors: Jianguo
authors: J
authors: Liu
authors: Yan
authors: Y
authors: Li
authors: Tingting
authors: T
authors: Sun
authors: Long
authors: L
authors: Jin
authors: Yang
authors: Y
authors: Yue
authors: Weigang
authors: W
authors: Zhang
authors: Shuzhong
authors: S
authors: Yuan
authors: Xiaoyi
authors: X
authors: Dong