| Download | - View accepted manuscript: Ultra-broadband mode converter and multiplexer based on sub-wavelength structures (PDF, 1.2 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1109/JPHOT.2018.2819364 |
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| Author | Search for: Gonzalez-Andrade, David; Search for: Wanguemert-Perez, Juan Gonzalo; Search for: Velasco, Aitor; Search for: Ortega-Monux, Alejandro; Search for: Herrero-Bermello, Alaine; Search for: Molina-Fernandez, Inigo; Search for: Halir, Robert; Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130 |
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| Affiliation | - National Research Council of Canada. Advanced Electronics and Photonics
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| Format | Text, Article |
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| Subject | mode-division multiplexing; mode-converter; broadband; sub-wavelength grating waveguides; silicon-on-insulator |
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| Abstract | Current bandwidth capacity provided by wavelength-division multiplexing and polarization-division multiplexing is insufficient to keep up with the increasing bandwidth demand required for new services. Mode-division multiplexing technology paves the way to further increase transmission and bandwidth capacities in photonic interconnects. In this work, we propose an ultra-broadband two-mode converter and de/multiplexer based on a sub-wavelength engineered multimode interference coupler, a 90° phase shifter and a symmetric Y-junction for the silicon on insulator platform. Sub-wavelength grating waveguides enable dispersion engineering to further increase the bandwidth operation of conventional multimode interference coupler and, subsequently, of mode de/multiplexer based on them. Full 3D simulations of the designed mode converter and de/multiplexer show insertion losses below than 0.84 dB and crosstalk lower than ± 20 dB over an unprecedented bandwidth of 300 nm (1.4 × 1.7 μm). The overall footprint of the proposed devices is only 36 μm × 3.7 μm. |
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| Publication date | 2018-03-27 |
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| Publisher | IEEE |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 23002980 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 0031dbba-de6f-4fd6-824a-fde863bdb56b |
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| Record created | 2018-04-03 |
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| Record modified | 2020-06-03 |
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