| EPSRC Reference: |
GR/S63526/01 |
| Title: |
RAPTOR - Rapidly tuneable semiconductor ring laser |
| Principal Investigator: |
Yu, Professor S |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Electrical and Electronic Engineering |
| Organisation: |
University of Bristol |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
25 October 2004 |
Ends: |
24 October 2007 |
Value (£): |
213,903
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| EPSRC Research Topic Classifications: |
| Optical Devices & Subsystems |
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| Panel History: |
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Summary on Grant Application Form |
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The tuning characteristics of semiconductor ring lasers (SRLs) will be Investigated. The research will focus on devices with cavity lengths supporting modal optical frequencies fitting the ITU-T grid for W DM applications. Initial studies show that ITU grid SRLs can be rapidly mode-selected by wavelength selective external feedback resulting in high SMSR single mode operation, with fast stabilising optical frequency and power fluctuations associated with the transiant resulting from the tuning. Potential advantages include insensitivity to external feedback phase which would result in simplified tuning operation by a single current variable, and usage of the ring cavity as precision frequency standard resulting in frequency independent of feedback grating thermal drift. The research will investigate the device physics of the proposed tuneable SRL device, in partiuclar its optical frequency and power response to varying optical injection and feedback. Fabrication of both monolithic and hybrid integrated devices will also be carried out, incoporating suitable grating feedback structures such as distributed Bragg grating or sampled-grating structures. Performance of these devices will be evaluated in their tuning response and range, as well as their applicational characteristics such a frequency stability and control complexity
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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.bris.ac.uk |