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Highly compact asymmetric Mach-Zehnder device based on channel guides in 2D photonic crystal

Highly compact asymmetric Mach-Zehnder device based on channel guides in 2D photonic crystal
Highly compact asymmetric Mach-Zehnder device based on channel guides in 2D photonic crystal
We have designed and fabricated a 2D photonic crystal (PhC) asymmetric Mach–Zehnder (M-Z) device structure using W1 channel waveguides oriented along Γ퐾 directions in silicon-on-insulator material. The asymmetric structure was designed using a PhC lattice with different filling factors. The asymmetry is obtained as a difference of two periods in the physical path length (Δ퐿=2푎) between the arms, and it was sufficient to produce a π phase shift in the region of operation around 휆=1500 nm. The asymmetric M-Z structure is more sensitive than a symmetric M-Z structure to changes in the refractive index and therefore becomes an interesting platform for switching and sensor devices.
0003-6935
6507-6510
Camargo, E A
b09e5729-444c-42a3-b633-97a6a6a9120a
Chong, H M H
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
De La Rue, R M
f172f931-c862-4a66-a3a4-731e362174da
Camargo, E A
b09e5729-444c-42a3-b633-97a6a6a9120a
Chong, H M H
795aa67f-29e5-480f-b1bc-9bd5c0d558e1
De La Rue, R M
f172f931-c862-4a66-a3a4-731e362174da

Camargo, E A, Chong, H M H and De La Rue, R M (2006) Highly compact asymmetric Mach-Zehnder device based on channel guides in 2D photonic crystal. Applied Optics, 45 (25), 6507-6510. (doi:10.1364/AO.45.006507).

Record type: Article

Abstract

We have designed and fabricated a 2D photonic crystal (PhC) asymmetric Mach–Zehnder (M-Z) device structure using W1 channel waveguides oriented along Γ퐾 directions in silicon-on-insulator material. The asymmetric structure was designed using a PhC lattice with different filling factors. The asymmetry is obtained as a difference of two periods in the physical path length (Δ퐿=2푎) between the arms, and it was sufficient to produce a π phase shift in the region of operation around 휆=1500 nm. The asymmetric M-Z structure is more sensitive than a symmetric M-Z structure to changes in the refractive index and therefore becomes an interesting platform for switching and sensor devices.

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More information

Published date: 2006
Organisations: Nanoelectronics and Nanotechnology

Identifiers

Local EPrints ID: 264897
URI: http://eprints.soton.ac.uk/id/eprint/264897
ISSN: 0003-6935
PURE UUID: 9123e5ab-61eb-4cea-ba83-6f42339dc6be
ORCID for H M H Chong: ORCID iD orcid.org/0000-0002-7110-5761

Catalogue record

Date deposited: 27 Nov 2007 09:32
Last modified: 15 Mar 2024 03:30

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Contributors

Author: E A Camargo
Author: H M H Chong ORCID iD
Author: R M De La Rue

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