Journal
OPTICS LETTERS
Volume 34, Issue 3, Pages 359-361Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.34.000359
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Funding
- European projects ePIXnet [IST-004525]
- COST P11
- Swiss National Centre
- [MP0702]
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We experimentally investigate the dispersion curve of an integrated silicon-on-insulator coupled-cavity waveguide in a photonic crystal environment using a technique based on far-field imaging. We show that a chain of eight coupled cavities of a moderate Q factor can form a continuous dispersion band characterized by extremely flat dispersion and a group index of 105 +/- 20 within a 2.6 nm wavelength range. The experimental results are well reproduced by theoretical calculations based on the guided-mode expansion method. (C) 2009 Optical Society of America
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