Parallelized Integrated Time-Correlated Photon Counting System for High Photon Counting Rate Applications

Time-correlated single-photon counting (TCSPC) applications usually deal with a high counting rate, which leads to a decrease in the system efficiency. This problem is further complicated due to the random nature of photon arrivals making it harder to avoid counting loss as the system is busy dealing with previous arrivals. In order to increase the rate of detected photons and improve the signal quality, many parallelized structures and imaging arrays have been reported, but this trend leads to an increased data bottleneck requiring complex readout circuitry and the use of very high output frequencies. In this paper, we present simple solutions that allow the improvement of signal-to-noise ratio (SNR) as well as the mitigation of counting loss through a parallelized TCSPC architecture and the use of an embedded memory block. These solutions are presented, and their impact is demonstrated by means of behavioral and mathematical modeling potentially allowing a maximum signal-to-noise ratio improvement of 20 dB and a system efficiency as high as 90% without the need for extremely high readout frequencies.

[1]  Yves Bérubé-Lauzière,et al.  Time-domain 3D localization of fluorescent inclusions in a thick scattering medium , 2008, Photonics North.

[2]  W. Brockherde,et al.  SPAD imagers for remote sensing at the single-photon level , 2012, Optics/Photonics in Security and Defence.

[3]  Kenneth L. Shepard,et al.  A 100 fps, Time-Correlated Single-Photon-Counting-Based Fluorescence-Lifetime Imager in 130 nm CMOS , 2014, IEEE Journal of Solid-State Circuits.

[4]  D. O'connor,et al.  Time-Correlated Single Photon Counting , 1984 .

[5]  Edoardo Charbon,et al.  A 160×128 single-photon image sensor with on-pixel 55ps 10b time-to-digital converter , 2011, 2011 IEEE International Solid-State Circuits Conference.

[6]  Imane Malass,et al.  SiPM based smart pixel for photon counting integrated streak camera , 2013, 2013 Conference on Design and Architectures for Signal and Image Processing.

[7]  A. Tosi,et al.  16-Channel Module Based on a Monolithic Array of Single-Photon Detectors and 10-ps Time-to-Digital Converters , 2014, IEEE Journal of Selected Topics in Quantum Electronics.

[8]  M. Ghioni,et al.  Progress in Quenching Circuits for Single Photon Avalanche Diodes , 2010, IEEE Transactions on Nuclear Science.

[9]  G. E. Thomas,et al.  Measurement of the Time Dependence of Scintillation Intensity by a Delayed‐Coincidence Method , 1961 .

[10]  W. Brockherde,et al.  SPAD Smart Pixel for Time-of-Flight and Time-Correlated Single-Photon Counting Measurements , 2012, IEEE Photonics Journal.

[11]  Sacha Maillot,et al.  High-throughput time-correlated single photon counting. , 2014, Lab on a chip.

[12]  E. Charbon,et al.  A single photon detector array with 64/spl times/64 resolution and millimetric depth accuracy for 3D imaging , 2005, ISSCC. 2005 IEEE International Digest of Technical Papers. Solid-State Circuits Conference, 2005..

[13]  R Fontaine,et al.  A Delay Locked Loop for fine time base generation in a positron emission tomography scanner , 2010, 5th International Conference on Design & Technology of Integrated Systems in Nanoscale Era.

[14]  Edoardo Charbon,et al.  A Time-Resolved, Low-Noise Single-Photon Image Sensor Fabricated in Deep-Submicron CMOS Technology , 2012, IEEE Journal of Solid-State Circuits.

[15]  David Stoppa,et al.  Depth-range extension with folding technique for SPAD-based TOF LIDAR systems , 2014, IEEE SENSORS 2014 Proceedings.

[16]  Alberto Tosi,et al.  A High-Linearity, 17 ps Precision Time-to-Digital Converter Based on a Single-Stage Vernier Delay Loop Fine Interpolation , 2013, IEEE Transactions on Circuits and Systems I: Regular Papers.

[17]  Imane Malass,et al.  Efficiency improvement of high rate integrated time correlated single photon counting systems by incorporating an embedded FIFO , 2015, 2015 IEEE 13th International New Circuits and Systems Conference (NEWCAS).