Optical channel waveguides in a chalcogenide (Ga:La:S) glass fabricated through short wavelength (λ=244nm) illumination
Optical channel waveguides in a chalcogenide (Ga:La:S) glass fabricated through short wavelength (λ=244nm) illumination
Chalcogenide optical glass is an interesting material, for both fibre and planar technologies, as it offers possibilities for a wide array of devices suitable for use in both non-linear applications and as IR sources. Channel waveguide structures were directly written into bulk gallium lanthanum sulphide glass via above-bandgap (λ=244nm) illumination. Focused fluence of 1.5-150 J/cm2 from a UV-laser was applied, inducing giant-photocompaction and photochemical changes. A typical channel waveguide had attenuation <0.3dB cm-1 and was spatially single-mode at 1µm. The damage threshold for fabricating such devices in this glass system is also discussed.
Mairaj, A.K.
69f81e26-b09f-4c34-83ee-4388f94fa147
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Mairaj, A.K.
69f81e26-b09f-4c34-83ee-4388f94fa147
Hewak, Daniel
87c80070-c101-4f7a-914f-4cc3131e3db0
Mairaj, A.K. and Hewak, Daniel
(2002)
Optical channel waveguides in a chalcogenide (Ga:La:S) glass fabricated through short wavelength (λ=244nm) illumination.
ICOCN (International Conference on Optical Networks), Singapore.
11 - 14 Nov 2002.
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Conference or Workshop Item
(Paper)
Abstract
Chalcogenide optical glass is an interesting material, for both fibre and planar technologies, as it offers possibilities for a wide array of devices suitable for use in both non-linear applications and as IR sources. Channel waveguide structures were directly written into bulk gallium lanthanum sulphide glass via above-bandgap (λ=244nm) illumination. Focused fluence of 1.5-150 J/cm2 from a UV-laser was applied, inducing giant-photocompaction and photochemical changes. A typical channel waveguide had attenuation <0.3dB cm-1 and was spatially single-mode at 1µm. The damage threshold for fabricating such devices in this glass system is also discussed.
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e-pub ahead of print date: 2002
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14D
Venue - Dates:
ICOCN (International Conference on Optical Networks), Singapore, 2002-11-11 - 2002-11-14
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Local EPrints ID: 17013
URI: http://eprints.soton.ac.uk/id/eprint/17013
PURE UUID: 6b1d3824-2aef-4a24-b511-dc54f0582fc3
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Date deposited: 05 Sep 2005
Last modified: 15 Mar 2024 05:51
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Author:
A.K. Mairaj
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