| EPSRC Reference: |
GR/R96347/01 |
| Title: |
Novel High-Power Diode Lasers Incorporating Curved-Gratings |
| Principal Investigator: |
Sibbett, Professor W |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics and Astronomy |
| Organisation: |
University of St Andrews |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2002 |
Ends: |
30 September 2003 |
Value (£): |
66,865
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| EPSRC Research Topic Classifications: |
| Lasers & Optics |
Optoelect. Devices & Circuits |
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| EPSRC Industrial Sector Classifications: |
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Summary on Grant Application Form |
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Within this project we plan to carry out theoretical and experimental studies of novel types of high-power diode lasers that incorporate curved-grating structures that are designed to provide enhanced spatial and spectral control. Our previous results have demonstrated the following.(i). Appropiate technology has been developed for reliable fabrication of second- and third- order curved-groove gratings, (ii) c-DBR devices with a si mode suppresion ratio over 30dB have been fabricated successfully and (iii) far-field and near-field studies have shown a lateral beam focusing effec outside the front facet, as predicted in our theoretical considerations.In addition to fully characterising and optimising the lasers in the 850 and 980nm spectral regions (ie AIGaAs, InGaAs material systems) we intend to evaluate the applicability of these novel laser systems in the optical pumping of laser gain madia and in frequency-up/down-conversion in quasi-phase matched nonlinear optical crystals such as periodically-polled lithium niobate and KTP. With these PPLN and PPKTP crystals it will be feasible to demonstrate significant frequency doubling, eg, such that a blue/UV compact source can be constructed.
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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.st-and.ac.uk |