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Photonic Demodulator With Sensitivity Control

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5 Author(s)
Van Nieuwenhove, D. ; Electron. & Informatics Dept., Vrije Univ. Brussel, Brussels ; Van der Tempel, W. ; Grootjans, R. ; Stiens, J.
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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%

Published in:

Sensors Journal, IEEE  (Volume:7 ,  Issue: 3 )

Date of Publication:

March 2007

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