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Slow light propagation in photonic crystal waveguides with ring-shaped holes
We use a single-defect photonic crystal waveguide with ring-shaped holes to achieve a small group velocity with relatively low group velocity dispersion. We show theoretically that a group index larger than 20 with a nearly constant group velocity dispersion parameter of 4.2 ps nm-1 mm-1 over a wave...
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Published in: | Journal of optics. A, Pure and applied optics Pure and applied optics, 2007-09, Vol.9 (9), p.S415-S418 |
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Main Authors: | , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We use a single-defect photonic crystal waveguide with ring-shaped holes to achieve a small group velocity with relatively low group velocity dispersion. We show theoretically that a group index larger than 20 with a nearly constant group velocity dispersion parameter of 4.2 ps nm-1 mm-1 over a wavelength range of 5 nm can be achieved. We manufactured a photonic crystal waveguide with ring-shaped holes onto silicon-on-insulator substrate. From the Fabry-Perot oscillations in the transmission spectrum, we deduced the group index in the waveguides as a function of the wavelength. We recorded group index values as large as 22. |
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ISSN: | 1464-4258 1741-3567 |
DOI: | 10.1088/1464-4258/9/9/S22 |