| EPSRC Reference: |
GR/M84787/01 |
| Title: |
TOWARDS STRONG OPTICAL FIBRES FROM NOVEL CHALCOGENIDE GLASSES |
| Principal Investigator: |
Hand, Professor RJ |
| Other Investigators: |
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| Department: |
Materials Science and Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 February 2000 |
Ends: |
31 January 2003 |
Value (£): |
229,917
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Communications |
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| Panel History: |
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Summary on Grant Application Form |
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Chalcogenide glasses based on Ga- La- S and Ga - Na-S transmit across the mid-visible to mid infrared region, have attractive physical properties and are of interest for active and passive optical fibre applications.We have established the critical role of low levels of oxide in promoting Ga-La - S and Ga - Na -S glass stability. The vapour deposition techniques to make fibreoptic performs are not achievable, instead we have developed low temperature extrusion to form performs of Ga-La-R-S glasses from which we have to drawn fibres. We propose these develop glasses and mixed Ga-La-R -S glasses (R is alkali metal ion) to attain the best overall properties.Before Ga-La-S, Ga-Na-S or Ga-La-R-S fibres can be utilised in communication systems with design lives of the order of the decades, it is essential to characterise their mechanical properties and how these vary with time. In particular the processing routes used will have major effects on the final strength of fibres. Thus we intend to produce unclad and core/clad, multimode and single mode fibres of theses glasses. Mechanical testing, fractography, zero-stress ageing and stress corrosion testing will be conducted as well as attempting to improve fibre strength by modifying the glass surface. In tandem, fibre optical loss will be measured and minimised.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.shef.ac.uk |