| EPSRC Reference: |
EP/C513622/1 |
| Title: |
Modulation Dynamics if Quantum Dot Laser Diodes |
| Principal Investigator: |
Hogg, Professor RA |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Electronic and Electrical Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
First Grant Scheme Pre-FEC |
| Starts: |
01 December 2004 |
Ends: |
31 May 2008 |
Value (£): |
103,600
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Synthesis & Growth |
| Optical Communications |
Optoelect. Devices & Circuits |
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Summary on Grant Application Form |
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Optical communications networks are required to work at ever increasing data rates. There is therefore a requirement for the engineering of inexpensive transmitter elements for such networks. Quantum dot (QD),laser diodes exhibit many properties which indicate that temperature insensitive, high performance, directly modulated laser diodes may be realised, leading to fibre optic transmitter modules of reduced cos and enhanced functionality. It has been predicted that QDs will replace quantum wells as the active element for telecomms lasers within 5 years. The proposed research aims to study the modulation dynamics of these QD laser diode structures with a view to their possible application of these devices in fibreoptic communication systems. The modulation dynamics are expected to be significantly different from conventional devices. providing insight into many aspects of low dimensional semiconductor physics. Furthermore, the research aims to study the prospect of engineering chirp in QDLDs (increasing the distance an optical signal can be transmitted over fibre-optic cable), and investigating novel modulation schemes involving switching the wavelength of the lasing state.
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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.shef.ac.uk |