Plasmonic Coupler and Multiplexer/Demultiplexer Based on Nano-Groove-Arrays

Aparna Udupi; Sathish Kumar Madhava

doi:10.1007/s11468-021-01430-9

Plasmonic Coupler and Multiplexer/Demultiplexer Based on Nano-Groove-Arrays

Aparna Udupi, Sathish Kumar Madhava

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

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

9 Citations (Scopus)

Abstract

A novel plasmonic unidirectional coupler and its extension to a multiplexer/demultiplexer are proposed and simulated. The proposed structure can be etched adjacent to metal-insulator-metal (MIM) waveguides which can result in considerable reduction in footprint of optical signal processing systems. Simulated results show very good agreement with design. Extinction ratio (ER) of more than 11 dB was achieved for both the coupler as well as the multiplexer/demultiplexer. Crosstalk as well as full width at half maximum (FWHM) was also highly acceptable for the multiplexer/demultiplexer. The proposed structures have an additional attractive feature of being amenable to integration with other relevant functionalities as demonstrated in the results.

Original language	English
Pages (from-to)	1685 - 1692
Journal	Plasmonics
Volume	16
Issue number	5
DOIs	https://doi.org/10.1007/s11468-021-01430-9
Publication status	Published - 10-2021

All Science Journal Classification (ASJC) codes

Biotechnology
Biophysics
Biochemistry

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abstract = "A novel plasmonic unidirectional coupler and its extension to a multiplexer/demultiplexer are proposed and simulated. The proposed structure can be etched adjacent to metal-insulator-metal (MIM) waveguides which can result in considerable reduction in footprint of optical signal processing systems. Simulated results show very good agreement with design. Extinction ratio (ER) of more than 11 dB was achieved for both the coupler as well as the multiplexer/demultiplexer. Crosstalk as well as full width at half maximum (FWHM) was also highly acceptable for the multiplexer/demultiplexer. The proposed structures have an additional attractive feature of being amenable to integration with other relevant functionalities as demonstrated in the results.",

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AB - A novel plasmonic unidirectional coupler and its extension to a multiplexer/demultiplexer are proposed and simulated. The proposed structure can be etched adjacent to metal-insulator-metal (MIM) waveguides which can result in considerable reduction in footprint of optical signal processing systems. Simulated results show very good agreement with design. Extinction ratio (ER) of more than 11 dB was achieved for both the coupler as well as the multiplexer/demultiplexer. Crosstalk as well as full width at half maximum (FWHM) was also highly acceptable for the multiplexer/demultiplexer. The proposed structures have an additional attractive feature of being amenable to integration with other relevant functionalities as demonstrated in the results.

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Plasmonic Coupler and Multiplexer/Demultiplexer Based on Nano-Groove-Arrays

Abstract

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