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.
1055-1063
Passaro, Vittorio
b6aa081c-aabb-4897-8cc3-6f16a58d3d6d
Mashanovich, Goran
c806e262-af80-4836-b96f-319425060051
6 February 2006
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), .
(doi:10.1364/OE.14.001055).
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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Published date: 6 February 2006
Organisations:
Optoelectronics Research Centre, Nanoelectronics and Nanotechnology
Identifiers
Local EPrints ID: 356513
URI: http://eprints.soton.ac.uk/id/eprint/356513
ISSN: 1094-4087
PURE UUID: 08f8568c-a982-477d-a771-4ab13fa390e9
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Date deposited: 23 Oct 2013 12:23
Last modified: 29 Oct 2024 02:45
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Author:
Vittorio Passaro
Author:
Goran Mashanovich
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