| EPSRC Reference: |
GR/R85181/01 |
| Title: |
Large gain (20db+) and broadband (40nm+) EDWAs for Metro LAN |
| Principal Investigator: |
Jha, Professor A |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Institute of Materials Research |
| Organisation: |
University of Leeds |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 2002 |
Ends: |
31 March 2005 |
Value (£): |
165,418
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| EPSRC Research Topic Classifications: |
| Optical Devices & Subsystems |
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Summary on Grant Application Form |
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SummaryDescribe the proposed research in about 200 words.There is a growing demand for EDWAs in the metro LAN sector of the network. At present, the main problems with commercial EDWAs are low value of small-signal gain below (10-15 dB) and narrow bandwidth (e.g. TEEM Lightwave's device has only 5-6 nm gain 1530-1535 nm) in the peak gain region. The proposed research provides an opportunity to develop new EDWAs using the optimised modified silicate glasses developed at Leeds (see Figures 1 and 2 in Part 1), which offers a potential for developing EDWAs with gain larger than 20 dB in the C-band and amplifying bandwidth of 40 nm. Theresearch at Leeds will optimise the bulk glass processing and spectroscopy for achieving the above gain and bandwidth targets. At Leeds we will also collaborate with the Department of Physics at the University of Lecce to carry out and co-ordinate the PLD deposition of modified silicate glasses on silica and silicon substrate for waveguide fabrication at THz. Leeds, THz, and HW University will participate in E-beam deposition of the modified silicate on silica and silicon substrates. Our aim is to optimise the deposition conditions to achieve 0.5 dB/cm loss in the waveguide. The gain characterisation of the devices will be carried out at HW using CW and pulsed pump sources as indicated in Figure 3, part 2. The system integration and evaluation will be carried out at THz to demonstrate a multi-channel amplification experiment using 980 nm and 1480 nm pump sources.
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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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| Date Materialised |
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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.leeds.ac.uk |