Direct UV written planar Bragg gratings that feature zero fluence induced birefringence
Direct UV written planar Bragg gratings that feature zero fluence induced birefringence
Direct UV writing is a planar fabrication process capable of simultaneously defining waveguides and Bragg gratings. The technique is fully computer controlled and uniquely uses a small focused spot ~7 μm in diameter for direct writing exposure. This work investigates its use to achieve phase trimming and Bragg grating definition in silica-on-silicon lithographic waveguides. It is observed that birefringence control using direct UV writing can be made independent of exposure fluence with this technique through tailoring substrate stress. The result is demonstrated experimentally and supported theoretically using finite element analysis.
Bragg gratings, birefingence, silica photonics
Holmes, Christopher
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Cooper, Peter
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Fernando, Harendra N.J.
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Stroll, Andreas
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Gates, James C.
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Krishnan, Chirenjeevi
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Haynes, Roger
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Mennea, Paolo L.
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Carpenter, Lewis G.
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Gawith, Corin B.E.
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Roth, Martin M.
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Charlton, Martin D.
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Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
December 2015
Holmes, Christopher
16306bb8-8a46-4fd7-bb19-a146758e5263
Cooper, Peter
29354b98-c117-4ace-9ca4-1d3ad531485f
Fernando, Harendra N.J.
be2e926a-26f2-4375-982b-42267925d52b
Stroll, Andreas
173c189b-f9ed-4212-9308-85c7704cbfee
Gates, James C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Krishnan, Chirenjeevi
0d41ebc9-118a-4f89-889e-8ad28a69237e
Haynes, Roger
d6920cc0-f2b8-4fe6-8f81-4fd4b8667ed0
Mennea, Paolo L.
d994ba05-bcc1-4be3-8ba1-439fb1535a3f
Carpenter, Lewis G.
0daa548e-0d42-4b06-b914-45bfbec41759
Gawith, Corin B.E.
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Roth, Martin M.
f92c44bb-f8b5-4dcc-b8fd-c053391a3b69
Charlton, Martin D.
fcf86ab0-8f34-411a-b576-4f684e51e274
Smith, Peter G.R.
8979668a-8b7a-4838-9a74-1a7cfc6665f6
Holmes, Christopher, Cooper, Peter, Fernando, Harendra N.J., Stroll, Andreas, Gates, James C., Krishnan, Chirenjeevi, Haynes, Roger, Mennea, Paolo L., Carpenter, Lewis G., Gawith, Corin B.E., Roth, Martin M., Charlton, Martin D. and Smith, Peter G.R.
(2015)
Direct UV written planar Bragg gratings that feature zero fluence induced birefringence.
Measurement Science and Technology, 26 (12), [125006].
(doi:10.1088/0957-0233/26/12/125006).
Abstract
Direct UV writing is a planar fabrication process capable of simultaneously defining waveguides and Bragg gratings. The technique is fully computer controlled and uniquely uses a small focused spot ~7 μm in diameter for direct writing exposure. This work investigates its use to achieve phase trimming and Bragg grating definition in silica-on-silicon lithographic waveguides. It is observed that birefringence control using direct UV writing can be made independent of exposure fluence with this technique through tailoring substrate stress. The result is demonstrated experimentally and supported theoretically using finite element analysis.
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More information
Accepted/In Press date: 29 September 2015
e-pub ahead of print date: 27 October 2015
Published date: December 2015
Keywords:
Bragg gratings, birefingence, silica photonics
Organisations:
Optoelectronics Research Centre, Nanoelectronics and Nanotechnology, Electronics & Computer Science
Identifiers
Local EPrints ID: 410452
URI: http://eprints.soton.ac.uk/id/eprint/410452
ISSN: 0957-0233
PURE UUID: 4a0e9ece-f11d-4f8a-8f97-c8fd85dc8196
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Date deposited: 08 Jun 2017 16:31
Last modified: 16 Mar 2024 03:52
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Contributors
Author:
Peter Cooper
Author:
Harendra N.J. Fernando
Author:
Andreas Stroll
Author:
Chirenjeevi Krishnan
Author:
Roger Haynes
Author:
Lewis G. Carpenter
Author:
Martin M. Roth
Author:
Martin D. Charlton
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