| EPSRC Reference: |
GR/K61098/01 |
| Title: |
COMPACT HIGH POWER VISIBLE LASER DIODE ARRAYS |
| Principal Investigator: |
Marsh, Professor JH |
| Other Investigators: |
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| Department: |
Electronics and Electrical Engineering |
| Organisation: |
University of Glasgow |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1995 |
Ends: |
30 November 1997 |
Value (£): |
186,554
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| EPSRC Research Topic Classifications: |
| Optoelect. Devices & Circuits |
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Summary on Grant Application Form |
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In this proposal we will develop red semiconductor pump sources with high power and a good beam quality. We shall concentrate on a specific wavelength (670nm) and will supply working devices to St Andrews for pumping Cr:LISAF and Cr:LISCAF lasers.The imaging properties of multi-mode interferences (MMI) coupler devices will be utilised to achieve good beam profiles. These couplers can be designed so that 'n' input laser beams can be imaged into a single output. A laser array of 'n' elements will be fabricated and monolithically integrated with the MMI coupler region. To minimise losses and catastrophic optical damage, the coupler section will be bandgap widened using quantum well intermixing. We have recently intermixed the red laser material system (GaInP/InGaAIP) using a cw Argon ion laser (~30meV shift). In other material systems we have dramatically improved the resolution of the intermixing process by using a pulsed laser system. We therefore intend to purchase and develop a suitable pulsed laser (Spectron SL804T laser) for the intermixing of GaInP/InGaAIP structures.
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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.gla.ac.uk |