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Design of SiON-based grating-assisted vertical directional couplers

Design of SiON-based grating-assisted vertical directional couplers
Design of SiON-based grating-assisted vertical directional couplers
In this paper, we present the design of a SiON-based grating-assisted codirectional coupler for dissimilar waveguides, based on an accurate numerical method. All the design parameters, including coupling length and coupling efficiency, have been calculated at the free-space optical wavelength of lambda = 1.54 µm for both TE and TM polarisations as a function of grating height, thickness of the coupled slabs, gap thickness between the two coupled planar waveguides. It is shown that efficient (up to 70%) and polarisation independent vertical couplers can be realised.
1094-4087
1055-1063
Passaro, Vittorio
b6aa081c-aabb-4897-8cc3-6f16a58d3d6d
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
Passaro, Vittorio
b6aa081c-aabb-4897-8cc3-6f16a58d3d6d
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051

Passaro, Vittorio and Mashanovich, Goran (2006) Design of SiON-based grating-assisted vertical directional couplers. Optics Express, 14 (3), 1055-1063. (doi:10.1364/OE.14.001055).

Record type: Article

Abstract

In this paper, we present the design of a SiON-based grating-assisted codirectional coupler for dissimilar waveguides, based on an accurate numerical method. All the design parameters, including coupling length and coupling efficiency, have been calculated at the free-space optical wavelength of lambda = 1.54 µm for both TE and TM polarisations as a function of grating height, thickness of the coupled slabs, gap thickness between the two coupled planar waveguides. It is shown that efficient (up to 70%) and polarisation independent vertical couplers can be realised.

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More information

Published date: 6 February 2006
Organisations: Optoelectronics Research Centre, Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 356513
URI: https://eprints.soton.ac.uk/id/eprint/356513
ISSN: 1094-4087
PURE UUID: 08f8568c-a982-477d-a771-4ab13fa390e9

Catalogue record

Date deposited: 23 Oct 2013 12:23
Last modified: 16 Jul 2019 21:23

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