| EPSRC Reference: |
GR/L97209/01 |
| Title: |
DIO-PUMPED SELF-GRATING LASERS |
| Principal Investigator: |
Eason, Professor RW |
| Other Investigators: |
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| Department: |
Sch of Physics and Astronomy |
| Organisation: |
University of Southampton |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
09 March 1998 |
Ends: |
08 March 2000 |
Value (£): |
129,697
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| EPSRC Research Topic Classifications: |
| Optical Devices & Subsystems |
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Summary on Grant Application Form |
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High power semiconductor diode arrays (>20W) are severely limited industrial applications by their poor spatial coherence and are therefore often used for optical pumping of solid-state lasers in which the resonator is designed to maintain a high-quality mode. We propose a novel approach, which combines expertise at Southampton in diode-pumped waveguide laser systems with the self-adaptive techniques pioneered at Imperial College by Dr Damzen. A solid-state planar waveguide amplifier will be developed with efficient diode side-pumping into the waveguide due to the compatible high-aspect ratio of both waveguide and emitter dimensions. The confinement of the pump light leads to considerably higher amplifier gains compared to bulk pumping, with continuous-wave gains in excess of 28dB having been demonstrated at Southampton in planar garnet waveguides. These high gains open the prospect of using gain saturation gratings to establish a self-organised holographic gain grating resonator for high-quality spatial and spectral cavity mode capability by correction of thermal effects, multimodal waveguide unscrambling and mode control of large in-plane guide dimension. Our aim in this way will be to demonstrate a high power solid state source with a diffraction-limited, single-longitudinal mode output beam.
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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.soton.ac.uk |