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The Design and Characterisation of an Optical VLSI Processor for Real Time Centroid Detection

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Abstract

The integration of photo-detectors onto a standard CMOS integrated circuit is presented. This device provides the optical front end for a real time centroid detection system to be used as part of a larger system for implementing a Shack-Hartmann wavefront sensor. A hardware emulation system containing a Field Programmable Gate Array is used to prototype suitable algorithms prior to IC fabrication. Data is presented on the performance of photodetectors and the ability to extract in real time a centroid coordinate.

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Authors and Affiliations

  1. VLSI Design Group, School of Electrical and Electronic Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK

    Boon Hean Pui, Barrie Hayes-Gill & Jean-François Piéri

  2. Optical Engineering Group, School of Electrical and Electronic Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, UK

    Matt Clark, Mike Somekh, Chung See, Steve P. Morgan & Alan Ng

Authors
  1. Boon Hean Pui
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  2. Barrie Hayes-Gill
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  3. Matt Clark
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  4. Mike Somekh
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  5. Chung See
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  6. Jean-François Piéri
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  7. Steve P. Morgan
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  8. Alan Ng
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Pui, B.H., Hayes-Gill, B., Clark, M. et al. The Design and Characterisation of an Optical VLSI Processor for Real Time Centroid Detection. Analog Integrated Circuits and Signal Processing 32, 67–75 (2002). https://doi.org/10.1023/A:1016075825331

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  • DOI: https://doi.org/10.1023/A:1016075825331

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