| EPSRC Reference: |
GR/R50943/01 |
| Title: |
Amplified Spontaneous Emission and Noise in Optical Amplifiers and Lasers |
| Principal Investigator: |
Adams, Professor M |
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| Department: |
Computing and Electronic Systems1 |
| Organisation: |
University of Essex |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 September 2001 |
Ends: |
30 September 2004 |
Value (£): |
133,684
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Summary on Grant Application Form |
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The aim of the project is to develop and apply Green function and transfer matrix methods for calculating the spontaneous emission spectra in semiconductor lasers and amplifiers. The calculations will be based on rigorous quantum-mechanical treatments of the spontaneous emission process. The methods will apply to lasers and amplifiers with arbitrary cavity configurations. In the case of edge-emitting devices, the cavities may include Fabry-Perot resonators, distributed Bragg reflectors (DBRs), distributed feedback (DFB) sections, phase-shifting sections, saturable absorbers, and regions of guided-wave propagation, where the optical confinement may be in one or two dimensions. In the case of surface-emitting configurations it is important to be able to predict the angular dependence of the spontaneous emission spectrum, since this determines the fraction of light that can be collected by an optical coupling system, and also influences the fraction of emission that contributes to the dominant longitudinal mode of a laser. Examples of these structures include vertical cavity surface-emitting lasers (VCSELs), resonant cavity light-emitting diodes (RCLEDs), microcavity lasers, and vertical-cavity semiconductor optical amplifiers. The theory will be applied to these latter devices as well as to the study of tunable edge-emitting lasers and to noise analysis in wavelength conversion in semiconductor optical amplifiers.
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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.sx.ac.uk |