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Details of Grant 

EPSRC Reference: GR/S68811/01
Title: Microchip & Visible External Cavity Surface-Emitting Semiconductor Lasers
Principal Investigator: Dawson, Professor M
Other Investigators:
Riis, Professor E Ferguson, Professor AI
Researcher Co-Investigators:
Dr D Burns
Project Partners:
Oxford Lasers Ltd
Department: Inst of Photonics
Organisation: University of Strathclyde
Scheme: Standard Research (Pre-FEC)
Starts: 01 April 2004 Ends: 31 March 2006 Value (£): 191,100
EPSRC Research Topic Classifications:
Optical Devices & Subsystems
EPSRC Industrial Sector Classifications:
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
Diode-pumped vertical external cavity surface-emitting lasers (VECSELs) are an exciting new category of semiconductor laser offering high average powers in circularly-symmetric, diffraction-limited output beams, and ready facility for ultrashort pulse (ps, fs) and single frequency operation. We propose - for the first time, to our knowledge - to extend this technology to direct operation at visible wavelengths, using a combination of proprietary design and fabrication techniques. These devices will be of significance in a host of applications including laser projection displays, metrology, spectroscopy, and nonlinear frequency conversion into the ultraviolet.Furthermore, we propose a novel microchip design of VECSEL where an optically-transparent heatspreader (sapphire, SiC or diamond) bonded to the surface of the VECSEL structure also forms the body of the cavity and serves as an intracavity (spatial/spectral) mode and polarisation control element. This approach should allow integrated VECSEL microchips of <1 cubic mm to be obtained, for high-performance mass-production of these devices at modest cost.
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Organisation Website: http://www.strath.ac.uk