| EPSRC Reference: |
GR/K38984/01 |
| Title: |
NOVEL MMIC DISTRIBUTED AMPLIFIER STRUCTURES FOR RECEIVER SIGNAL SHAPING IN OPTICAL COMMUNICATION SYSTEMS |
| Principal Investigator: |
O'Reilly, Professor Sir JJ |
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| Department: |
Electronic and Electrical Engineering |
| Organisation: |
UCL |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 May 1994 |
Ends: |
31 October 1996 |
Value (£): |
123,981
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Summary on Grant Application Form |
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This project is concerned with developing new techniques - based upon the distributed amplifier principle - for the realisation of receiver signal shaping structures appropriate to very high rate digital optical communications transmission systems. The use of monolithic microwave integrated circuits provides the technology platform for realisation. The work is centred around the observation that by suitably modifying the distributed amplifier certain transversal filter-like arrangements can in principle be achieved. the overall objective is to explore the potential and limitations of this approach as a means of achieving high performance receiver arrangements compatible with full integration of the requisite receiver signal processing functions in MMIC technology. Progress:It has been shown that the distributed amplifier can be modified to provide certain signal shaping operations appropriate to optical receivers. Emphasis is being placed on reducing the range of gain values and/or delays required with a view to maximising the reproducibility of the response. Designs have been carried out and simulated using MDS which establish that the restrictions proposed in this area are compatible with the signal shaping requirements of optical receivers, with both NRZ and RZ signalling formats having been investigated. We have developed techniques which enable receivers to be based upon: fixed differential delays and variable gain per stage; variable differential delays and fixed gains per stage; constrained delays and gains.
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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 |
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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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