A solid-state block-based pulsed laser illuminator for SPAD-based time-of-flight 3-D range imaging

Sahba Jahromi; J-P Jansson; P. P. Keränen; Evgeny Avrutin; B.S. Ryvkin; Juha Tapio Kostamovaara

doi:10.1117/1.OE.60.5.054105

A solid-state block-based pulsed laser illuminator for SPAD-based time-of-flight 3-D range imaging

Sahba Jahromi, J-P Jansson, P. P. Keränen, Evgeny Avrutin, B.S. Ryvkin, Juha Tapio Kostamovaara

Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A laser diode illuminator for single photon detection (SPAD) based pulsed time-of-flight 3-D range imaging is presented. The illuminator supports the block-based illumination scheme. It consists of a 16-element custom designed common anode quantum-well (QW) laser diode bar working in the enhanced gain switching regime and lasing at ~810nm. The laser diode elements are separately addressable and driven with GaN drivers producing 5...10A/~2ns current pulses from a supply voltage of 90V. Cylindrical optics is used to produce a total illumination field-of-view of 40ºx10º (FWHM) in 16 separately addressable blocks. With a laser pulsing frequency of 256kHz and laser pulse energy of ~8.5nJ, the average optical illumination power of the transmitter is 2.2mW

Original language	English
Article number	054105
Number of pages	11
Journal	OPTICAL ENGINEERING
Volume	60
Issue number	5
DOIs	https://doi.org/10.1117/1.OE.60.5.054105
Publication status	Published - 21 May 2021

Bibliographical note

© The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

Keywords

Laser radar
single photon detection
range imaging
lidar

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10.1117/1.OE.60.5.054105Licence: CC BY

Block_based_Illuminator_for_3D
© The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Final published version, 1.85 MBLicence: CC BY

Cite this

@article{ca40ae5825514748a5014438cb82cbcb,

title = "A solid-state block-based pulsed laser illuminator for SPAD-based time-of-flight 3-D range imaging",

abstract = "A laser diode illuminator for single photon detection (SPAD) based pulsed time-of-flight 3-D range imaging is presented. The illuminator supports the block-based illumination scheme. It consists of a 16-element custom designed common anode quantum-well (QW) laser diode bar working in the enhanced gain switching regime and lasing at ~810nm. The laser diode elements are separately addressable and driven with GaN drivers producing 5...10A/~2ns current pulses from a supply voltage of 90V. Cylindrical optics is used to produce a total illumination field-of-view of 40ºx10º (FWHM) in 16 separately addressable blocks. With a laser pulsing frequency of 256kHz and laser pulse energy of ~8.5nJ, the average optical illumination power of the transmitter is 2.2mW",

keywords = "Laser radar, single photon detection, range imaging, lidar",

author = "Sahba Jahromi and J-P Jansson and {P. Ker{\"a}nen}, P. and Evgeny Avrutin and B.S. Ryvkin and Kostamovaara, {Juha Tapio}",

note = "{\textcopyright} The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.",

year = "2021",

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AU - Jahromi, Sahba

AU - Jansson, J-P

AU - P. Keränen, P.

AU - Avrutin, Evgeny

AU - Ryvkin, B.S.

AU - Kostamovaara, Juha Tapio

N1 - © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

PY - 2021/5/21

Y1 - 2021/5/21

N2 - A laser diode illuminator for single photon detection (SPAD) based pulsed time-of-flight 3-D range imaging is presented. The illuminator supports the block-based illumination scheme. It consists of a 16-element custom designed common anode quantum-well (QW) laser diode bar working in the enhanced gain switching regime and lasing at ~810nm. The laser diode elements are separately addressable and driven with GaN drivers producing 5...10A/~2ns current pulses from a supply voltage of 90V. Cylindrical optics is used to produce a total illumination field-of-view of 40ºx10º (FWHM) in 16 separately addressable blocks. With a laser pulsing frequency of 256kHz and laser pulse energy of ~8.5nJ, the average optical illumination power of the transmitter is 2.2mW

AB - A laser diode illuminator for single photon detection (SPAD) based pulsed time-of-flight 3-D range imaging is presented. The illuminator supports the block-based illumination scheme. It consists of a 16-element custom designed common anode quantum-well (QW) laser diode bar working in the enhanced gain switching regime and lasing at ~810nm. The laser diode elements are separately addressable and driven with GaN drivers producing 5...10A/~2ns current pulses from a supply voltage of 90V. Cylindrical optics is used to produce a total illumination field-of-view of 40ºx10º (FWHM) in 16 separately addressable blocks. With a laser pulsing frequency of 256kHz and laser pulse energy of ~8.5nJ, the average optical illumination power of the transmitter is 2.2mW

KW - Laser radar

KW - single photon detection

KW - range imaging

KW - lidar

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DO - 10.1117/1.OE.60.5.054105

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