Embedded-Silicon-Strip-to-Hybrid-Plasmonic Waveguide Polarization Mode Converter

Yin Jung Chang; Ren Wei Feng

doi:10.1109/LPT.2017.2684182

Embedded-Silicon-Strip-to-Hybrid-Plasmonic Waveguide Polarization Mode Converter

Yin Jung Chang, Ren Wei Feng

Department of Optics and Photonics

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

6 Scopus citations

Abstract

A novel polarization mode converter bridging a conventional embedded silicon strip waveguide and a metal-capped hybrid plasmonic waveguide is proposed. Innovative design principles based on gradient ascent of the TM polarization fraction in conjunction with the modal index contour for practical initial designs are developed and numerically verified. The mode conversion efficiency (MCE), insertion loss (IL), and the polarization conversion efficiency (PCE) at λ₀ = 1550 nm are 87.58%, 0.5899 dB, and 99.84%, respectively. The respective 1-dB optical bandwidths for the MCE and IL are about 133 and 140 nm, while the PCE is > 98% over a 102-nm spectral range. The low-index silica spacer is found to impose the most stringent fabrication requirement.

Original language	English
Article number	7880612
Pages (from-to)	759-762
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	29
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2017.2684182
State	Published - 1 May 2017

Keywords

Mode converter
plasmonic waveguide
polarization rotation

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10.1109/LPT.2017.2684182

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abstract = "A novel polarization mode converter bridging a conventional embedded silicon strip waveguide and a metal-capped hybrid plasmonic waveguide is proposed. Innovative design principles based on gradient ascent of the TM polarization fraction in conjunction with the modal index contour for practical initial designs are developed and numerically verified. The mode conversion efficiency (MCE), insertion loss (IL), and the polarization conversion efficiency (PCE) at λ0 = 1550 nm are 87.58%, 0.5899 dB, and 99.84%, respectively. The respective 1-dB optical bandwidths for the MCE and IL are about 133 and 140 nm, while the PCE is > 98% over a 102-nm spectral range. The low-index silica spacer is found to impose the most stringent fabrication requirement.",

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AU - Feng, Ren Wei

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N2 - A novel polarization mode converter bridging a conventional embedded silicon strip waveguide and a metal-capped hybrid plasmonic waveguide is proposed. Innovative design principles based on gradient ascent of the TM polarization fraction in conjunction with the modal index contour for practical initial designs are developed and numerically verified. The mode conversion efficiency (MCE), insertion loss (IL), and the polarization conversion efficiency (PCE) at λ0 = 1550 nm are 87.58%, 0.5899 dB, and 99.84%, respectively. The respective 1-dB optical bandwidths for the MCE and IL are about 133 and 140 nm, while the PCE is > 98% over a 102-nm spectral range. The low-index silica spacer is found to impose the most stringent fabrication requirement.

AB - A novel polarization mode converter bridging a conventional embedded silicon strip waveguide and a metal-capped hybrid plasmonic waveguide is proposed. Innovative design principles based on gradient ascent of the TM polarization fraction in conjunction with the modal index contour for practical initial designs are developed and numerically verified. The mode conversion efficiency (MCE), insertion loss (IL), and the polarization conversion efficiency (PCE) at λ0 = 1550 nm are 87.58%, 0.5899 dB, and 99.84%, respectively. The respective 1-dB optical bandwidths for the MCE and IL are about 133 and 140 nm, while the PCE is > 98% over a 102-nm spectral range. The low-index silica spacer is found to impose the most stringent fabrication requirement.

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KW - polarization rotation

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Embedded-Silicon-Strip-to-Hybrid-Plasmonic Waveguide Polarization Mode Converter

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Keywords

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