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Proceedings Paper

Optoelectronic library for color sensor design
Author(s): Fadhila Haned; Mohamed Ben Chouikha; Andre Baguenier Desormeaux; Georges Alquie
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Paper Abstract

Color imaging systems still use a combination of conventional photo-detectors and RGB optical filters for color measurement. This entails many limitations to the color sensor performances. We reported that buried junction color detectors give good alternatives to overcome these limitations. However, successful design of color sensors using these detectors requires an accurate knowledge of their behaviors. Unfortunately, circuit simulators do not provide models for these devices. In order to make the designer task more flexible, an optoelectronic library is developed under CADENCE design tool. It consists of some optoelectronic elements such as Buried Double pn Junction (BDJ) detector and a set of optical sources. This allows the designer to choose an optical stimulus with a specific spectral distribution and also to select the total power incident on the BDJ surface. The library is obtained by implementing, in Spectre simulator, the behavioral models of the optoelectronic elements. The models are written using Verilog-A language. Simulations of the BDJ spectral response and dark currents give a good agreement with experimental data. We also note the absence of convergence errors or mathematical faults during DC and transient simulations of active pixel sensor architectures. These results confirm the robustness of the optoelectronic library.

Paper Details

Date Published: 7 March 2005
PDF: 10 pages
Proc. SPIE 5677, Sensors and Camera Systems for Scientific and Industrial Applications VI, (7 March 2005); doi: 10.1117/12.587642
Show Author Affiliations
Fadhila Haned, Univ. Pierre et Marie Curie (France)
Mohamed Ben Chouikha, Univ. Pierre et Marie Curie (France)
Andre Baguenier Desormeaux, Cadence Design Systems SAS (France)
Georges Alquie, Univ. Pierre et Marie Curie (France)

Published in SPIE Proceedings Vol. 5677:
Sensors and Camera Systems for Scientific and Industrial Applications VI
Morley M. Blouke, Editor(s)

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