Modeling of a vertical hybrid plasmonic switch with VO2 fin bragg grating

Mandeep Singh; Arnab Datta

doi:10.1109/LPT.2018.2826845

Modeling of a vertical hybrid plasmonic switch with VO₂ fin bragg grating

Mandeep Singh, Arnab Datta

Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

A 3-D vertical hybrid plasmonic switch having vanadium oxide (VO₂) Bragg grating element inside a silicon waveguide has been modeled and simulated in this letter. Narrow bandwidth (30 nm) switching has been achieved maintaining 11.14-dB extinction ratio (ER) at 1.55 μm, effectively due to tailoring VO₂ refractive index via heat-induced phase transition. Furthermore, switching response has been assessed by tailoring the number of VO₂ fins within the silicon waveguide, oxide spacer dimension, width and height of the silicon waveguide as well, which have impact on the switch behaviour. From numerical simulations, we have found that for 933.4-nm device length with three VO₂ fins 11.14-dB ER and 1.57 figure of merit at 1.55-μm wavelength can be obtained.

Original language	English
Pages (from-to)	997-1000
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	30
Issue number	11
DOIs	https://doi.org/10.1109/LPT.2018.2826845
Publication status	Published - 01-06-2018

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2018.2826845

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abstract = "A 3-D vertical hybrid plasmonic switch having vanadium oxide (VO2) Bragg grating element inside a silicon waveguide has been modeled and simulated in this letter. Narrow bandwidth (30 nm) switching has been achieved maintaining 11.14-dB extinction ratio (ER) at 1.55 μm, effectively due to tailoring VO2 refractive index via heat-induced phase transition. Furthermore, switching response has been assessed by tailoring the number of VO2 fins within the silicon waveguide, oxide spacer dimension, width and height of the silicon waveguide as well, which have impact on the switch behaviour. From numerical simulations, we have found that for 933.4-nm device length with three VO2 fins 11.14-dB ER and 1.57 figure of merit at 1.55-μm wavelength can be obtained.",

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Modeling of a vertical hybrid plasmonic switch with VO₂ fin bragg grating

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