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Abstract
In this Letter, we report group index measurements of the supermodes of an array of two strongly coupled silicon-on-insulator waveguides. We observe coupling-induced dispersion that is greater than the material and waveguide dispersion of the individual waveguides. We demonstrate that the system transforms from supporting the two supermodes associated with two coupled waveguides to the single mode of a slot waveguide within the investigated spectral range. During the cutoff of the antisymmetric supermode, an anti-crossing between the symmetric TM and antisymmetric TE supermodes has been observed.
Original language | English |
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Pages (from-to) | 3925-3927 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 35 |
Issue number | 23 |
DOIs | |
Publication status | Published - 2010 |
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Dive into the research topics of 'Supermode dispersion and waveguide-to-slot mode transition in arrays of silicon-on-insulator waveguides'. Together they form a unique fingerprint.Projects
- 1 Finished
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Nonlinear Photonics in Silicon-on-Insulator Nanostructures
Skryabin, D., Knight, J. & Wadsworth, W.
Engineering and Physical Sciences Research Council
1/09/09 → 28/02/13
Project: Research council