| EPSRC Reference: |
GR/L82052/01 |
| Title: |
BROADBAND INTEGRATED MILLIMETRE-WAVE OVER FIBRE SYSTEMS |
| Principal Investigator: |
Seeds, Professor AJ |
| Other Investigators: |
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| Department: |
Electronic and Electrical Engineering |
| Organisation: |
UCL |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 August 1998 |
Ends: |
31 January 2001 |
Value (£): |
153,977
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| EPSRC Research Topic Classifications: |
| Optical Communications |
RF & Microwave Technology |
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Summary on Grant Application Form |
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Future mobile cellular networks and multi-point video distribution systems (MVDS) will use radio frequencies extending into the millimetre-wave band. An efficient method of synchronising the frequencies of the many antenna units that will be required is to use the millimetre-wave over fibre scheme where an optical carrier is modulated within the millimetre-wave signal and is distributed to the antenna units by optical fibre. This project will develop a broad band millimetre-wave over fibre system offering reduced insertion loss, low dispersion penalty and potential for reduced cost through integration. The base station will use the first millimetre-wave Optical Injection Phase Lock Loop (OIPLL), allowing efficient and high spectral purity generation of broadband modulated optical signals over a wide range of millimetre-wave carrier frequencies, from semiconductor lasers of non-critical linewidth. The approach facilitates the use of a single sideband modulation to reduce the dispersion penalties for propagation through standard fibre. Millimetre-wave modulated optical signal detection by integrated detector/injection locked oscillator will be investigated for the antenna unit, since this approach can overcome the difficulty in realising high gain millimetre-wave amplifiers. The return channel circuitry, which need not be at millimetre-wave frequencies, will also be considered to achieve a hybrid integrated antenna unit.
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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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