Title :
Photonic Demodulator With Sensitivity Control
Author :
Van Nieuwenhove, Daniël ; Van der Tempel, Ward ; Grootjans, Riemer ; Stiens, Johan ; Kuijk, Maarten
Author_Institution :
Electron. & Informatics Dept., Vrije Univ. Brussel, Brussels
fDate :
3/1/2007 12:00:00 AM
Abstract :
A current assisted photonic demodulator for use as a pixel in a 3-D time-of-flight imager shows nearly 100% static demodulator contrast and is operable beyond 30 MHz. An integrated tunable sensitivity control is also presented for increasing the distance measurement range and avoiding unwanted saturation during integration periods. This is achieved by application of a voltage on a dedicated drain tap showing a quenching of sensor sensitivity to below 1%
Keywords :
cameras; demodulators; image sensors; optical modulation; 3D camera; 3D time-of-flight imager; distance measurement; photonic demodulator; sensitivity control; sensor sensitivity; static demodulator contrast; Acceleration; Cameras; Charge carrier processes; Demodulation; Distance measurement; Electrons; Informatics; Optical control; Pixel; Voltage; 3-D camera; Photonic demodulator; range finding; time-of-flight (TOF);
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2006.890164
