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EPSRC Reference: GR/K10805/01
Title: THEORETICAL INVESTIGATION OF ADVANCED STRAINED-LAYER BANDSTRUCTURE ENGINEERING FOR OPTICAL MODULATORS
Principal Investigator: Adams, Professor A
Other Investigators:
O'Reilly, Professor E
Researcher Co-Investigators:
Project Partners:
BT Nortel
Department: Physics
Organisation: University of Surrey
Scheme: Standard Research (Pre-FEC)
Starts: 01 June 1995 Ends: 31 May 1997 Value (£): 73,484
EPSRC Research Topic Classifications:
Optoelect. Devices & Circuits
EPSRC Industrial Sector Classifications:
Communications
Related Grants:
Panel History:  
Summary on Grant Application Form
Semiconductor devices consisting of multi-strain step-like quantum wells herald a new era in bandstructure engineering for optoelectronics. These quantum wells can contain a range of different materials, both strained and unstrained. These can cause a significant modification of the valence band structure in a quite unique way compared to conventional single strain or unstrained quantum well layers. We will study theoretically the implication of this technology and apply it to advanced strained quantum well systems for electro-absorption (EA) modulators based on the Quantum Confined Stark Effect (QCSE). These structures will be modelled theoretically using the strained InGaAsP system grown on InP. Many different multi-strain step structures will be analysed and their main characteristics identified. This will lead to conclusions on the usefulness to improve the existing performance of EA modulators and lead to optimised structures.
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Organisation Website: http://www.surrey.ac.uk