Systematic design of flat band slow light in photonic crystal waveguides
Date
2008
Authors
Li, Juntao
White, Thomas
O'Faolain, Liam
Gomez-Iglesias, Alvaro
Krauss, Thomas F.
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Abstract
We present a systematic procedure for designing “flat bands” of
photonic crystal waveguides for slow light propagation. The procedure aims
to maximize the group index - bandwidth product by changing the position
of the first two rows of holes of W1 line defect photonic crystal waveguides.
A nearly constant group index - bandwidth product is achieved for group
indices of 30-90 and as an example, we experimentally demonstrate flat
band slow light with nearly constant group indices of 32.5, 44 and 49 over
14 nm, 11 nm and 9.5 nm bandwidth around 1550 nm, respectively.
Description
Keywords
Keywords: Band structure; Bandwidth; Light propagation; Photonic crystals; Bandwidth products; Flat band slow light; Photonic crystal waveguides; Optical waveguides; article; crystallography; light; photon; scanning electron microscopy; spectroscopy; Crystallograph
Citation
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Source
Optics Express
Type
Journal article