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All-optical signal processing using planar Bragg gratings

All-optical signal processing using planar Bragg gratings
All-optical signal processing using planar Bragg gratings
The fabrication techniques of Bragg gratings broadly fall into two categories: that are holographic, and that are non-interferometric, based on the periodical UV radiation along the photosensitive medium. The fabrication technique in this work is the direct UV grating writing (DGW). This method involves focusing two crossed laser beams (lambda=244nm) into a photosensitive core layer. Precise translation of the sample and modulation of the interference pattern define the channel waveguide and simultaneously create grating structures, shown in Figure 1. First developed at Optoelectronics Research Centre in 2002, it has similarities to the UV writing techniques used for fiber Bragg grating inscription. Advanced grating properties such as chirp, phase shifts, and apodisation are introduced by adjusting the laser intensity and the translating speed.
Sima, C.
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Gates, J.C.
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Snow, B.D.
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Rogers, H.L.
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Holmes, C.
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Zervas, M.N.
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Smith, P.G.R.
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Sima, C.
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Gates, J.C.
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Snow, B.D.
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Rogers, H.L.
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Holmes, C.
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Zervas, M.N.
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Smith, P.G.R.
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Sima, C., Gates, J.C., Snow, B.D., Rogers, H.L., Holmes, C., Zervas, M.N. and Smith, P.G.R. (2011) All-optical signal processing using planar Bragg gratings. Photonics and Optoelectronics Meeting (POEM 2011), China. 02 - 05 Nov 2011. (doi:10.1117/12.919071).

Record type: Conference or Workshop Item (Paper)

Abstract

The fabrication techniques of Bragg gratings broadly fall into two categories: that are holographic, and that are non-interferometric, based on the periodical UV radiation along the photosensitive medium. The fabrication technique in this work is the direct UV grating writing (DGW). This method involves focusing two crossed laser beams (lambda=244nm) into a photosensitive core layer. Precise translation of the sample and modulation of the interference pattern define the channel waveguide and simultaneously create grating structures, shown in Figure 1. First developed at Optoelectronics Research Centre in 2002, it has similarities to the UV writing techniques used for fiber Bragg grating inscription. Advanced grating properties such as chirp, phase shifts, and apodisation are introduced by adjusting the laser intensity and the translating speed.

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e-pub ahead of print date: 2011
Venue - Dates: Photonics and Optoelectronics Meeting (POEM 2011), China, 2011-11-02 - 2011-11-05
Organisations: Optoelectronics Research Centre, Physics & Astronomy, Electronics & Computer Science

Identifiers

Local EPrints ID: 336431
URI: https://eprints.soton.ac.uk/id/eprint/336431
PURE UUID: e40206e3-3419-4c01-84f6-106d2b40a6e6
ORCID for J.C. Gates: ORCID iD orcid.org/0000-0001-8671-5987
ORCID for C. Holmes: ORCID iD orcid.org/0000-0001-9021-3760
ORCID for M.N. Zervas: ORCID iD orcid.org/0000-0002-0651-4059
ORCID for P.G.R. Smith: ORCID iD orcid.org/0000-0003-0319-718X

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Date deposited: 28 Mar 2012 10:12
Last modified: 29 Oct 2019 02:08

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Contributors

Author: C. Sima
Author: J.C. Gates ORCID iD
Author: B.D. Snow
Author: H.L. Rogers
Author: C. Holmes ORCID iD
Author: M.N. Zervas ORCID iD
Author: P.G.R. Smith ORCID iD

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