Share Email Print

Proceedings Paper

FPGA based time-to-digital converters
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Time-to-digital converters are a key component in many photonics systems, ranging from LiDAR, quantum key distribution, quantum optics experiments and time correlated single photon counting applications. A novel efficient timeto- digital converter non-linearity calibration technique has been developed and demonstrated on a Spartan 6 LX150 field programmable gate array (FPGA). Most FPGA based time-to-digital converters either use post processing or have calibration techniques which do not focus on minimizing resource utilization. With the move towards imaging with arrays of single photon detectors, scalable timing instrumentation is required. The calibration system demonstrated minimizes block memory utilization, using the same memory for probability density function measurement and cumulative distribution function generation, creating a look up table which can be used to calibrate the sub-clock timing module of the time-to-digital converter. The system developed contains 16 time-to-digital converters and demonstrates an average accuracy of 21ps RMS (14.85ps single channel) with a resolution of 1.86ps.

Paper Details

Date Published: 30 March 2020
PDF: 6 pages
Proc. SPIE 11347, Quantum Technologies 2020, 1134719 (30 March 2020); doi: 10.1117/12.2555997
Show Author Affiliations
Richard W. Nock, Aston Univ. (United Kingdom)
Xiao Ai, QLM Technology Ltd. (United Kingdom)
Yang Lu, Aston Univ. (United Kingdom)
Naim Dahnoun, Univ. of Bristol (United Kingdom)
John G. Rarity, Univ. of Bristol (United Kingdom)

Published in SPIE Proceedings Vol. 11347:
Quantum Technologies 2020
Eleni Diamanti; Sara Ducci; Nicolas Treps; Shannon Whitlock, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?