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Proceedings Paper

Design and characterization of an optical VLSI processor for real-time centroid detection
Author(s): Boon Hean Pui; Barrie Hayes-Gill; Matt Clark; Michael G. Somekh; Chung Wah See; Jean-Francois Pieri; Stephen P. Morgan; Alan Ng
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Paper 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.

Paper Details

Date Published: 5 April 2001
PDF: 8 pages
Proc. SPIE 4408, Design, Test, Integration, and Packaging of MEMS/MOEMS 2001, (5 April 2001); doi: 10.1117/12.425338
Show Author Affiliations
Boon Hean Pui, Univ. of Nottingham (United Kingdom)
Barrie Hayes-Gill, Univ. of Nottingham (United Kingdom)
Matt Clark, Univ. of Nottingham (United Kingdom)
Michael G. Somekh, Univ. of Nottingham (United Kingdom)
Chung Wah See, Univ. of Nottingham (United Kingdom)
Jean-Francois Pieri, Univ. of Nottingham (United Kingdom)
Stephen P. Morgan, Univ. of Nottingham (United Kingdom)
Alan Ng, Univ. of Nottingham (United Kingdom)


Published in SPIE Proceedings Vol. 4408:
Design, Test, Integration, and Packaging of MEMS/MOEMS 2001

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