Hypervelocity time-of-flight characterisation of a 14GS/s histogramming CMOS SPAD sensor

Neil Finlayson; Tarek Al Abbas; Francescopaolo Mattioli Della Rocca; Oscar Almer; Salvatore Gnecchi; Neale A. W. Dutton; Robert K. Henderson

doi:10.1117/12.2252271

27 January 2017 Hypervelocity time-of-flight characterisation of a 14GS/s histogramming CMOS SPAD sensor

Neil Finlayson, Tarek Al Abbas, Francescopaolo Mattioli Della Rocca, Oscar Almer, Salvatore Gnecchi, Neale A. W. Dutton, Robert K. Henderson

Author Affiliations +

Proceedings Volume 10111, Quantum Sensing and Nano Electronics and Photonics XIV; 101112Z (2017) https://doi.org/10.1117/12.2252271
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

We present Time-of-Flight (TOF) distance, velocity and acceleration characterisation of a multi-event Time-to-Digital- Converter (TDC) optical sensor featuring a 32x32 Single Photon Avalanche Diode (SPAD) array, a 14 GS/s TDC and on-chip histogram generation. Events are continuously recorded on-chip in 264 70 ps-wide histogram bins. High TDC throughput enables the device to be operated in Doppler mode with pulse-trains moving at hypervelocity speeds relative to the operational sensor frequency. Electrical frequency-detuned signals of 50 kHz are resolved by the TDC module. Optical frequency-detuned signals of 1 kHz are resolved, corresponding to a TOF velocity resolution of 15.8 km/s. Linear, sine-wave, and chirp frequency modulation techniques are used to demonstrate these characteristics.

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Citation Download Citation

Neil Finlayson, Tarek Al Abbas, Francescopaolo Mattioli Della Rocca, Oscar Almer, Salvatore Gnecchi, Neale A. W. Dutton, and Robert K. Henderson "Hypervelocity time-of-flight characterisation of a 14GS/s histogramming CMOS SPAD sensor", Proc. SPIE 10111, Quantum Sensing and Nano Electronics and Photonics XIV, 101112Z (27 January 2017); https://doi.org/10.1117/12.2252271

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