Modeling and simulation under SPICe of optoelectronic systems including BDJ detector

Annick Alexandre; Mohamed Sedjil; Mohamed Ben Chouikha; George Alquie

doi:10.1117/12.425352

5 April 2001 Modeling and simulation under SPICE of optoelectronic systems including BDJ detector

Annick Alexandre, Mohamed Sedjil, Mohamed Ben Chouikha, George Alquie

Proceedings Volume 4408, Design, Test, Integration, and Packaging of MEMS/MOEMS 2001; (2001) https://doi.org/10.1117/12.425352
Event: Design, Test, Integration, and Packaging of MEMS/MOEMS 2001, 2001, Cannes-Mandelieu, France

Abstract

We have recently developed in our laboratory a new integrated photodetector called BDJ. This detector allows determination of the wavelength of a monochromatic light. It was used to realize colorimetric applications. To develop such optoelectronic systems or microsystems we need simulations of their electronic behavior. Simulators like SPICE give in their libraries models for electrical components but not for optoelectronic components like photosensors or optic system. So we have developed a SPICE model to simulate the BDJ detector behavior and the optic source response. This model was implemented under SPICE and to illustrate its use, we have chosen to simulate two colorimetric applications developed in our laboratory; the first one allows determination of iron concentration and the second of the pH of solutions. In these applications, the optic system is composed of a light source (in practice Led's), and of a tube containing a liquid sensitive to the incident light wavelength; the transmission coefficient of the liquid depends on iron concentration in the first case and on reactive concentration and pH in the second case. Behavioral models of this optic system were included in the BDJ detector SPICE model. So we can obtain photocurrents ratio versus iron concentration or pH and reactive concentration. This system was simulated with an electronic associated circuit. This circuit is a classic analog circuit including several operational amplifiers. The optoelectronic system with associated circuit was described and simulated under SPICE and gives good results in comparison with measurements.

Citation Download Citation

Annick Alexandre, Mohamed Sedjil, Mohamed Ben Chouikha, and George Alquie "Modeling and simulation under SPICE of optoelectronic systems including BDJ detector", Proc. SPIE 4408, Design, Test, Integration, and Packaging of MEMS/MOEMS 2001, (5 April 2001); https://doi.org/10.1117/12.425352

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