University of Oulu

M. Pakaslahti, J. Nissinen and I. Nissinen, "A Pulse Width-Controlled CMOS Laser Diode Pulser and a Time-Gated Time-Resolved SPAD Array Transceiver Chip for Diffuse Optics," 2020 European Conference on Circuit Theory and Design (ECCTD), Sofia, Bulgaria, 2020, pp. 1-4, doi: 10.1109/ECCTD49232.2020.9218361

A pulse width-controlled CMOS laser diode pulser and a time-gated time-resolved SPAD array transceiver chip for diffuse optics

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Author: Pakaslahti, Marko1; Nissinen, Jan1; Nissinen, Ilkka1
Organizations: 1Circuits and Systems Research Unit, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2020
Publish Date: 2020-12-10


A pulse width-controlled CMOS pulser for a semiconductor laser diode (LD) and a time-gated time-resolved 8×4 single-photon avalanche diode array with a time-to-digital converter (TDC) were designed on a single integrated circuit and simulated by using a 150 nm technology. The pulse width of the driving current can be adjusted from 0.5 ns to 2.5 ns with a resolution of 100 ps. The start time of the time-gating can be adjusted over a dynamic range of 4.8 ns with a resolution of 100 ps and, furthermore, a 121 ps time-gating can be achieved. The returning photons are detected by the TDC with a resolution of 50 ps and stored to the 128 14-bit counters for merging to the distribution time-of-flight histogram. The average power consumption of the whole system was 377 mW at a repetition rate of 10 MHz.

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Series: IEEE International New Circuits and Systems Conference
ISSN: 2472-467X
ISSN-E: 2474-9672
ISSN-L: 2472-467X
ISBN: 978-1-7281-7183-8
ISBN Print: 978-1-7281-7184-5
Pages: 1 - 4
Article number: 9218361
DOI: 10.1109/ECCTD49232.2020.9218361
Host publication: 2020 European Conference on Circuit Theory and Design (ECCTD)
Conference: European Conference on Circuit Theory and Design
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by the Academy of Finland under Contract 323719 and .Contract 314404-.
Academy of Finland Grant Number: 323719
Detailed Information: 323719 (Academy of Finland Funding decision)
314404 (Academy of Finland Funding decision)
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