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Mach-Zehnder channel-guide device structure based on 2D photonic crystal

Mach-Zehnder channel-guide device structure based on 2D photonic crystal
Mach-Zehnder channel-guide device structure based on 2D photonic crystal
We have fabricated and measured 2D photonic crystal Mach-Zehnder device structures using W1 channel waveguides oriented along GK directions in AlGaAs/GaAs epitaxial waveguide material and silicon-on-insulator waveguide material, with operation at wavelengths around 1550 nm. 2D FDTD simulations and experimental results will be shown and compared. The structure has been designed using progressive tapering of the hole diameter in the bend regions, while a 'defect' hole with reduced radius has been placed in the centre of the Y-Junction, giving a substantial improvement in the transmission and bandwidth. The overall length of the photonic crystal Mach-Zehnder structure is typically about 32 µm and the structure has been fabricated using a combination of direct-write electron-beam lithography (EBL) and dry-etch processing. Devices were measured using a tunable laser with end-fire coupling. We shall describe the application of such structures for switching and sensing, with deliberate exploitation of the thermo-optic effect via the incorporation of heater electrodes.
5450
333-343
SPIE
Camargo, Edilson A.
b09e5729-444c-42a3-b633-97a6a6a9120a
Chong, Harold M.H.
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
De La Rue, Richard M.
3cfd4a89-ad89-4114-9046-e607038d9d9c
Sotomayor Torres, Clivia M.
Viktorovitch, Pierre
Midrio, Michele
Camargo, Edilson A.
b09e5729-444c-42a3-b633-97a6a6a9120a
Chong, Harold M.H.
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
De La Rue, Richard M.
3cfd4a89-ad89-4114-9046-e607038d9d9c
Sotomayor Torres, Clivia M.
Viktorovitch, Pierre
Midrio, Michele

Camargo, Edilson A. and Chong, Harold M.H. (2004) Mach-Zehnder channel-guide device structure based on 2D photonic crystal. De La Rue, Richard M., Sotomayor Torres, Clivia M., Viktorovitch, Pierre and Midrio, Michele (eds.) In Photonic Crystal Materials and Nanostructures. SPIE. pp. 333-343 . (doi:10.1117/12.545719).

Record type: Conference or Workshop Item (Paper)

Abstract

We have fabricated and measured 2D photonic crystal Mach-Zehnder device structures using W1 channel waveguides oriented along GK directions in AlGaAs/GaAs epitaxial waveguide material and silicon-on-insulator waveguide material, with operation at wavelengths around 1550 nm. 2D FDTD simulations and experimental results will be shown and compared. The structure has been designed using progressive tapering of the hole diameter in the bend regions, while a 'defect' hole with reduced radius has been placed in the centre of the Y-Junction, giving a substantial improvement in the transmission and bandwidth. The overall length of the photonic crystal Mach-Zehnder structure is typically about 32 µm and the structure has been fabricated using a combination of direct-write electron-beam lithography (EBL) and dry-etch processing. Devices were measured using a tunable laser with end-fire coupling. We shall describe the application of such structures for switching and sensing, with deliberate exploitation of the thermo-optic effect via the incorporation of heater electrodes.

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More information

e-pub ahead of print date: April 2004
Published date: 15 September 2004
Venue - Dates: SPIE Photonics Europe 2004 (EPE04), France, 2004-04-26 - 2004-04-30
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 264978
URI: http://eprints.soton.ac.uk/id/eprint/264978
PURE UUID: afcc2e3a-926b-4b0b-87d1-af2fe201fa7b
ORCID for Harold M.H. Chong: ORCID iD orcid.org/0000-0002-7110-5761

Catalogue record

Date deposited: 18 Dec 2007 10:37
Last modified: 18 Feb 2021 17:10

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Contributors

Author: Edilson A. Camargo
Author: Harold M.H. Chong ORCID iD
Editor: Richard M. De La Rue
Editor: Clivia M. Sotomayor Torres
Editor: Pierre Viktorovitch
Editor: Michele Midrio

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