Abstract
In this letter, we investigate a tapered coupler for efficient coupling of light between a planar HIMI plasmonic and dielectric waveguides. The coupler gives an overall transmission efficiency of 98% at optical wavelength of 1550 nm. It offers long propagation length 328 \(\mu \hbox {m}\) at the mode propagation loss of 0.0132 dB/\(\mu \hbox {m}\). The coupler’s efficiency has also been investigated with respect to its important parameters. The entire structure occupies a footprint area of 3\(\times\)1.2 \(\mu \hbox {m}^2\) and it is CMOS compatible with on-chip applications.
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Srivastava, K., Dinesh Kumar, V. Efficient coupling of light between dielectric and HIMI plasmonic waveguide. Opt Quant Electron 52, 354 (2020). https://doi.org/10.1007/s11082-020-02456-9
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DOI: https://doi.org/10.1007/s11082-020-02456-9