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Advances in modified gallium lanthanum sulphide (Ga:La:S) glass for optical fibre devices

Advances in modified gallium lanthanum sulphide (Ga:La:S) glass for optical fibre devices
Advances in modified gallium lanthanum sulphide (Ga:La:S) glass for optical fibre devices
The advantages of gallium lanthanum sulphide (GLS) based glass over other competing glasses for active and infrared applications are evident through its low-phonon energy, high rare-earth solubility, high transition temperature and non-toxicity. However this glass often devitrifies during fibre drawing due to a small separation between the crystallisation and fibre drawing temperatures. Improving GLS fabrication technology may hold the key to achieving practical optical waveguide devices. In this paper, we describe the current GLS research status, methods of improving glass purity and our directions toward alternatives to traditional fibre technology, in particular planar channel waveguides and holey or microstructured fibres.
Mairaj, A.
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Hewak, D.
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Brady, D.J.
797f449e-0540-4426-a086-5daf69f3eb38
Jander, P.
f1ce5878-a2c0-4f48-8521-cc851cfc4125
Schweizer, T.
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West, Y.D.
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Petrovich, M.N.
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Mairaj, A.
c05fb028-c25d-445a-90d2-2085e8a4fe76
Hewak, D.
87c80070-c101-4f7a-914f-4cc3131e3db0
Brady, D.J.
797f449e-0540-4426-a086-5daf69f3eb38
Jander, P.
f1ce5878-a2c0-4f48-8521-cc851cfc4125
Schweizer, T.
1b183bb4-c89d-42bf-81e0-b2e2b9af2635
West, Y.D.
de4775d7-a064-4804-9dca-4076f5005c99
Petrovich, M.N.
bfe895a0-da85-4a40-870a-2c7bfc84a4cf

Mairaj, A., Hewak, D., Brady, D.J., Jander, P., Schweizer, T., West, Y.D. and Petrovich, M.N. (2000) Advances in modified gallium lanthanum sulphide (Ga:La:S) glass for optical fibre devices. SPIE: Infrared Optical Fibres and Their Applications. 05 - 08 Nov 2000. (doi:10.1117/12.417421).

Record type: Conference or Workshop Item (Paper)

Abstract

The advantages of gallium lanthanum sulphide (GLS) based glass over other competing glasses for active and infrared applications are evident through its low-phonon energy, high rare-earth solubility, high transition temperature and non-toxicity. However this glass often devitrifies during fibre drawing due to a small separation between the crystallisation and fibre drawing temperatures. Improving GLS fabrication technology may hold the key to achieving practical optical waveguide devices. In this paper, we describe the current GLS research status, methods of improving glass purity and our directions toward alternatives to traditional fibre technology, in particular planar channel waveguides and holey or microstructured fibres.

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e-pub ahead of print date: 2000
Venue - Dates: SPIE: Infrared Optical Fibres and Their Applications, 2000-11-05 - 2000-11-08

Identifiers

Local EPrints ID: 16943
URI: https://eprints.soton.ac.uk/id/eprint/16943
PURE UUID: 3337a18e-b69d-4e29-905d-c3f3251968b7
ORCID for D. Hewak: ORCID iD orcid.org/0000-0002-2093-5773
ORCID for M.N. Petrovich: ORCID iD orcid.org/0000-0002-3905-5901

Catalogue record

Date deposited: 19 Aug 2005
Last modified: 29 Aug 2019 00:53

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