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Channel waveguides in ion-exchanged Pyrex by direct UV writing

Channel waveguides in ion-exchanged Pyrex by direct UV writing
Channel waveguides in ion-exchanged Pyrex by direct UV writing
In this paper, we show that UV irradiation can induce a significant refractive index change in Pyrex, a commercial oxide glass which does not contain the most common photosensitiser, germanium. We describe the fabrication of channel waveguides in potassium-ion exchanged Pyrex by UV writing and find the maximum UV-induced change in refractive index to be 1 × 10-3. UV-induced changes in the absorption spectrum are reported and attributed to the formation of defects from iron impurities inherent in the glass. A colour-centre-related model for the observed refractive index change is proposed.
0030-4018
109-114
Sheridan, A.K.
3744de9e-5516-4842-bb36-852702ded40a
Gawith, C.B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Emmerson, G.D.
89517051-daed-4f8e-aca6-f686d8c54e7c
Milton, J.A.
9e183221-d0d4-4ddb-aeba-0fdde9d31230
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca
Sheridan, A.K.
3744de9e-5516-4842-bb36-852702ded40a
Gawith, C.B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Emmerson, G.D.
89517051-daed-4f8e-aca6-f686d8c54e7c
Milton, J.A.
9e183221-d0d4-4ddb-aeba-0fdde9d31230
Smith, P.G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Wilkinson, J.S.
73483cf3-d9f2-4688-9b09-1c84257884ca

Sheridan, A.K., Gawith, C.B.E., Emmerson, G.D., Milton, J.A., Smith, P.G.R. and Wilkinson, J.S. (2004) Channel waveguides in ion-exchanged Pyrex by direct UV writing. Optics Communications, 242 (1-3), 109-114. (doi:10.1016/j.optcom.2004.08.014).

Record type: Article

Abstract

In this paper, we show that UV irradiation can induce a significant refractive index change in Pyrex, a commercial oxide glass which does not contain the most common photosensitiser, germanium. We describe the fabrication of channel waveguides in potassium-ion exchanged Pyrex by UV writing and find the maximum UV-induced change in refractive index to be 1 × 10-3. UV-induced changes in the absorption spectrum are reported and attributed to the formation of defects from iron impurities inherent in the glass. A colour-centre-related model for the observed refractive index change is proposed.

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More information

Published date: 2004
Learn more about Optoelectronics Research Centre research Learn more about Ocean and Earth Science research

Identifiers

Local EPrints ID: 16085
URI: http://eprints.soton.ac.uk/id/eprint/16085
DOI: doi:10.1016/j.optcom.2004.08.014
ISSN: 0030-4018
PURE UUID: 8e1d1ede-46ed-4e69-b793-f651577530b0
ORCID for C.B.E. Gawith: ORCID iD orcid.org/0000-0002-3502-3558
ORCID for J.A. Milton: ORCID iD orcid.org/0000-0003-4245-5532
ORCID for P.G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X
ORCID for J.S. Wilkinson: ORCID iD orcid.org/0000-0003-4712-1697

Catalogue record

Date deposited: 23 Jun 2005
Last modified: 16 Mar 2024 03:12

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Contributors

Author: A.K. Sheridan
Author: C.B.E. Gawith ORCID iD
Author: G.D. Emmerson
Author: J.A. Milton ORCID iD
Author: P.G.R. Smith ORCID iD
Author: J.S. Wilkinson ORCID iD

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