Title :
An on chip signal processing and Fabry-Perot sensor using multi-slopes architecture
Author :
Ahmadi, Shahrokh ; Zaghloul, Mona
Author_Institution :
Dept. of Electr. & Comput. Eng., George Washington Univ., DC, USA
Abstract :
In this paper, a Fabry-Perot based optical smart sensor and some of its advantages and applications are discussed. Basics of optical sensors and tight intensity modulations, with regard to the smart sensor, are discussed. The CMOS/MEMS implementation and fabrication of a Fabry-Perot sensor and it´s companion photodiode are shown. This companion photodiode of Fabry-Perot converts the filtered light intensity into an electrical signal. A CMOS integrated circuit is designed for the signal conditioning and processing of photodiode electrical signal. Using the CMOS integrated circuit, the analog signal is converted into a digital form and is available in an 8-bit bus for further processing
Keywords :
CMOS integrated circuits; Fabry-Perot interferometers; intelligent sensors; micro-optics; microsensors; optical modulation; optical sensors; 8 bit; CMOS integrated circuit; CMOS/MEMS implementation; Fabry-Perot sensor; filtered light intensity; multi-slopes architecture; on chip signal processing; optical smart sensor; photodiode; signal conditioning; tight intensity modulations; CMOS integrated circuits; Fabry-Perot; Intelligent sensors; Intensity modulation; Optical filters; Optical modulation; Optical sensors; Optical signal processing; Photodiodes; Signal processing;
Conference_Titel :
Circuits and Systems, 2001. MWSCAS 2001. Proceedings of the 44th IEEE 2001 Midwest Symposium on
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-7150-X
DOI :
10.1109/MWSCAS.2001.986289
