| EPSRC Reference: |
GR/M42787/01 |
| Title: |
HIGH AVERAGE POWER SOLID STATE PLANAR WAVEGUIDE LASERS FACE PUMPED WITH DIODE BARS |
| Principal Investigator: |
Baker, Professor HJ |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Sch of Engineering and Physical Science |
| Organisation: |
Heriot-Watt University |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 July 1999 |
Ends: |
31 December 2002 |
Value (£): |
283,310
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| EPSRC Research Topic Classifications: |
| Lasers & Optics |
Optoelect. Devices & Circuits |
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| EPSRC Industrial Sector Classifications: |
| Electronics |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The use of large aspect ratio Nd: YAG planar waveguides as a route to high beam quality lasers at < 250 W power will be investigated. A newly developed technique for efficient face pumping of the thin active layer with laser diode arrays will be applied to CW pumping for the first time, producing waveguide modules of 50W and 250W output capability. Single and double sided pumping will be developed to raise the pump power density to 100 W/sq.cm in this area scaleable laser format. The modules will be used for experiments on the control of thermally-induced refractive index and depolarisation limits to beam quality by step-index waveguiding, and on power amplification of ns, long pulse and cw beams with MOPA configurations. Mode selectivity of hybrid unstable-waveguide resonators will be enhanced to produce power oscillators of high quality beam quality. Active and passive Q-switching will be investigated to generate laser pulse trains. Collaborative work will investigate the applications of high power planar waveguide lasers in a range of applications including non-linear optics, pulse train control, high speed marking and precision processing of materials.
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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.hw.ac.uk |