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Photonic Demodulator with Sensitivity Control This publication appears in: IEEE Sensors Journal Authors: D. Van Nieuwenhove, W. van der Tempel, R. Grootjans, J. Stiens and M. Kuijk Volume: 7 Pages: 317-318 Publication Date: Mar. 2007
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%
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