| EPSRC Reference: |
GR/L81895/01 |
| Title: |
ADVANCED INGAAS/INP AVALANCHE PHOTODIODES |
| Principal Investigator: |
Buller, Professor G |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
Heriot-Watt University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 1997 |
Ends: |
30 April 2001 |
Value (£): |
211,256
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| EPSRC Research Topic Classifications: |
| Optoelect. Devices & Circuits |
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| EPSRC Industrial Sector Classifications: |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The proposed programme on InGaAs/InP based avalanche diodes results for two recent significant developments: (I) new work on thin GaAs/AlGaAs avalanche structures has shown low noise behaviour beyond that predicted by established theories and (ii) recent developments in single-photon avalanche diodes (SPADs) operating at longer wavelengths (i.e.>1um). These developments show potential for both conventional uses of avalanche detectors at up to 1.55um wavelength, such as in telecommunications, but also in new applications for SPADs at these wavelengths, e.g. quantum cryptography, time resolved fluorescence and OTDR. The programme will characterise the impact ionisation processes in InP, InGaAs, AlInAs and related multi-layer structures in order to establish better designs for both 'analogue' and photon-counting devices operating at wavelengths up to 1.55um. The project will fabricate SPAD devices, initially based on established designs used in below breakdown operation and, later, will use data from the impact ionisation measurements to construct devices more specific to photon-counting operation.
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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.hw.ac.uk |