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Optical coupling between a self-assembled microsphere grating and a rib waveguide

Tai, Chao-Yi, Unal, Bayram, Wilkinson, James S., Ghanem, Mohamed A. and Bartlett, Philip N. (2004) Optical coupling between a self-assembled microsphere grating and a rib waveguide Applied Physics Letters, 84, (18), pp. 3513-3515. (doi:10.1063/1.1739275).

Record type: Article

Abstract

We report the fabrication of a linear array of self-assembled polystyrene microspheres side-coupled to a rib waveguide. The optical coupling between the lateral evanescent field and the periodically perturbed effective refractive index alongside the waveguide results in a transmission stopband at the Bragg wavelength.

The observed transmission spectrum shows a notch centered at lambda = 1590nm, which is in close agreement with theory. The coupling coefficient, K, and the spectral response are derived for variable cladding medium index using perturbation theory. Structures of this type are expected to find application in wavelength selection, optical sensing, and optical delays.

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Published date: 2004

Identifiers

Local EPrints ID: 30225
URI: http://eprints.soton.ac.uk/id/eprint/30225
ISSN: 0003-6951
PURE UUID: 8aba4a11-7a53-42b9-9d6f-1e0bc5cd3862
ORCID for James S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697
ORCID for Philip N. Bartlett: ORCID iD orcid.org/0000-0002-7300-6900

Catalogue record

Date deposited: 11 May 2006
Last modified: 17 Jul 2017 15:55

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Contributors

Author: Chao-Yi Tai
Author: Bayram Unal
Author: Mohamed A. Ghanem

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