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A 1 x 64 CMOS Ranging Sensor based on Current Assisted Photonic Demodulators

Host Publication: Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet

Authors: W. van der Tempel, D. Van Nieuwenhove, R. Grootjans and M. Kuijk

Publication Date: Sep. 2007


Abstract:

A new CMOS active pixel ranging sensor is presented, realized as a 1x64 array of 30$\mu$m x 30$\mu$m lock-in pixels. The sensor is based on the current-assisted photonic demodulator, implemented in Standard CMOS 0.35 $\mu$m technology. The ranging pixel achieves 75\% Fill-Factor, 0.22 A/W total Q.E. and a demodulation bandwidth up to 70 MHz, both at 860nm light. Range-finding is achieved through Modulated Wave Time-of-Flight measurements with a modulation frequency of 20MHz. Distance measurements are presented. This sensor represents the first step towards integrating CAPD-based lock-in pixels in large TOF CMOS ranging systems.

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+32 (0)02 629 299

mkuijk@etrovub.be

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