Multimode-interference-based crossing for metal-insulator-me

发布时间：2017-12-06 05:03

  本文关键词：Multimode-interference-based crossing for metal-insulator-metal waveguides

  更多相关文章： crossing crosstalk waveguide throughput insulator connected reaches thereby photonic collision

【摘要】：We report a waveguide crossing based on a multimode-interference(MMI)structure for metal-insulator-metal(MIM)waveguides.The MMI-based crossing comprises two orthogonal intersecting MMI waveguides that are connected to the single-mode input/output waveguide symmetrically.Single self-images are formed at the crossing center and output plane of the MMI waveguide,thereby mitigating the crosstalk and improving the throughput.The characteristics of the proposed MMI-based crossing are investigated with the finite element method of Comsol Multiphysics.The results show that the throughput reaches -1.8 dB and the crosstalk is less than -46 dB at the wavelength of 1550 nm.
【作者单位】： State
【基金】：supported by the National Natural Science Foundation of China(Nos.11374041 and11574035) the Fund of State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications),China
【分类号】：TN252
【正文快照】： Surface plasmon polaritons(SPPs)are regarded as promising candidates in future photonic integrated circuits because of their tight field confinements[1,2].In particular,the metal-insulator-metal(MIM)waveguides based on SPPs has deep subwavelength field c

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