| Download | - View accepted manuscript: Subwavelength grating periodic structures in silicon-on-insulator : A new type of microphotonic waveguide (PDF, 786 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1364/OE.18.020251 |
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| Author | Search for: Bock, Przemek J.1; Search for: Cheben, Pavel1ORCID identifier: https://orcid.org/0000-0003-4232-9130; Search for: Schmid, Jens H.1; Search for: Lapointe, Jean1; Search for: Delâge, André1; Search for: Janz, Siegfried1; Search for: Aers, Geof C.1; Search for: Xu, Dan-Xia1; Search for: Densmore, Adam1; Search for: Hall, Trevor J. |
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| Affiliation | - National Research Council of Canada. NRC Institute for Microstructural Sciences
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| Format | Text, Article |
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| Abstract | We report on the experimental demonstration and analysis of a new waveguide principle using subwavelength gratings. Unlike other periodic waveguides such as line-defects in a 2D photonic crystal lattice, a subwavelength grating waveguide confines the light as a conventional index-guided structure and does not exhibit optically resonant behaviour. Subwavelength grating waveguides in silicon-on-insulator are fabricated with a single etch step and allow for flexible control of the effective refractive index of the waveguide core simply by lithographic patterning. Experimental measurements indicate a propagation loss as low as 2.1 dB/cm for subwavelength grating waveguides with negligible polarization and wavelength dependent loss, which compares favourably to conventional microphotonic silicon waveguides. The measured group index is nearly constant ng ~1.5 over a wavelength range exceeding the telecom C-band. |
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| Publication date | 2010-09-08 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 17326680 |
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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 | 32d4e095-aaa8-47f7-874a-d6ec05d1b9af |
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| Record created | 2011-03-26 |
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| Record modified | 2020-04-17 |
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