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Lateral groove geometry for planar UV written evanescent devices - new flexibility new devices

Lateral groove geometry for planar UV written evanescent devices - new flexibility new devices
Lateral groove geometry for planar UV written evanescent devices - new flexibility new devices
Conventional evanescent optical devices have made use of etched windows to allow access of an optical field to a material of interest. Such devices are a route to accurate refractive index sensors and to realising modulators, however, the geometry of etching the cladding to give the fluid access to a pre-defined core waveguide mode is limiting. In this work, we present an alternative approach in which a groove is cut using a polishing saw blade to give a vertical, high optical quality trench. Optical waveguides are then UV written to allow evanescent lateral access of the mode to a fluid placed in the trench. This seemingly subtle change in geometry provides greatly increased flexibility to tailor the interaction between the optical mode and the surrounding material, by, for example, changing the mode size and the allowing couplers or tapers to be used.
Gates, James C.
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Adikan, F.R.M.
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Holmes, Christopher
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Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Adikan, F.R.M.
69a2f4bb-520c-40a7-861d-0532cffffc40
Holmes, Christopher
8e1a791b-0802-4b43-885a-f7511deb8389
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6

Gates, James C., Adikan, F.R.M., Holmes, Christopher, Gawith, Corin B.E. and Smith, Peter G.R. (2007) Lateral groove geometry for planar UV written evanescent devices - new flexibility new devices. Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, Munich, Germany. 17 - 22 Jun 2007. 1 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

Conventional evanescent optical devices have made use of etched windows to allow access of an optical field to a material of interest. Such devices are a route to accurate refractive index sensors and to realising modulators, however, the geometry of etching the cladding to give the fluid access to a pre-defined core waveguide mode is limiting. In this work, we present an alternative approach in which a groove is cut using a polishing saw blade to give a vertical, high optical quality trench. Optical waveguides are then UV written to allow evanescent lateral access of the mode to a fluid placed in the trench. This seemingly subtle change in geometry provides greatly increased flexibility to tailor the interaction between the optical mode and the surrounding material, by, for example, changing the mode size and the allowing couplers or tapers to be used.

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More information

Published date: June 2007
Additional Information: CE4-4-Tue
Venue - Dates: Conference on Lasers and Electro-Optics (CLEO)-Europe/International Quantum Electronics Conference (IQEC): CLEO/IQEC, Munich, Germany, 2007-06-17 - 2007-06-22

Identifiers

Local EPrints ID: 47820
URI: https://eprints.soton.ac.uk/id/eprint/47820
PURE UUID: d1e99299-0168-4ed7-bbc5-7f059edfaf44
ORCID for James C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for Corin B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558
ORCID for Peter G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X

Catalogue record

Date deposited: 10 Aug 2007
Last modified: 17 Oct 2019 00:38

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Contributors

Author: James C. Gates ORCID iD
Author: F.R.M. Adikan
Author: Christopher Holmes

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