| EPSRC Reference: |
GR/S49315/01 |
| Title: |
Long wavelength GaAs-based QD Lasers. |
| Principal Investigator: |
Smowton, Professor PM |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
School of Physics and Astronomy |
| Organisation: |
Cardiff University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 November 2003 |
Ends: |
31 May 2007 |
Value (£): |
210,561
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| EPSRC Research Topic Classifications: |
| Lasers & Optics |
Optical Devices & Subsystems |
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Summary on Grant Application Form |
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Using a number of novel growth techniques we will extend the emission range of GaAs-based QD lasers to the important telecommunications range of 1.3-1.6um. Making use of the many advantageous properties of QD lasers compared to quantum well lasers we will apply optimised device designs to a number of specific applications. We will also study physical processes in these highly novel systems. More specifically we will:(i) Employ novel growth techniques, including the use of N and Sb containing QDs, to extend the lasing wavelength of a GaAs-based system to cover the 1.3-1.6um spectral region.(ii) Investigate the use of P based cladding layers to eliminate AIGaAs related non-radiative centres which presently limit the high temperature performance of QD lasers(iii) Utilise the inhibited carrier diffusion provided by a QD active region to facilitate the fabricate with single step growth of high performance lasers. We will also investigate limits on the volume of the active region in very small volume devices.
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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.cf.ac.uk |