M., Hallman, L., Kostamovaara, J. (2017) Comparison of the leading-edge timing walk in pulsed TOF laser range finding with avalanche bipolar junction transistor (BJT) and metal-oxide-semiconductor (MOS) switch based laser diode drivers. Review of Scientific Instruments, 88 (12), 123109. doi:10.1063/1.4999253
Comparison of the leading-edge timing walk in pulsed TOF laser range finding with avalanche bipolar junction transistor (BJT) and metal-oxide-semiconductor (MOS) switch based laser diode drivers
|Author:||Hintikka, Mikko1; Hallman, Lauri1; Kostamovaara, Juha1|
1Circuits and Systems Research Group, University of Oulu, Pentti Kaiteran katu 1, Oulu 90014, Finland
|Online Access:||PDF Full Text (PDF, 1.4 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe201801051097
American Institute of Physics,
|Publish Date:|| 2018-01-05
Timing walk error in pulsed time-of-flight based laser range finding was studied using two different types of laser diode drivers. The study compares avalanche bipolar junction transistor (BJT) and metal-oxide-semiconductor field-effect transistor switch based laser pulse drivers, both producing 1.35 ns current pulse length (full width at half maximum), and investigates how the slowly rising part of the current pulse of the avalanche BJT based driver affects the leading edge timing walk. The walk error was measured to be very similar with both drivers within an input signal dynamic range of 1:10 000 (receiver bandwidth of 700 MHz) but increased rapidly with the avalanche BJT based driver at higher values of dynamic range. The slowly rising part does not exist in the current pulse produced by the metal-oxide-semiconductor (MOS) based laser driver, and thus the MOS based driver can be utilized in a wider dynamic range.
Review of scientific instruments
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
The authors acknowledge financial support from the Academy of Finland (Centre of Excellence in Laser Scanning Research, Contract Nos. 307362, 255359, and 263705) and the Infotech Oulu Graduate School.
|Academy of Finland Grant Number:||
307362 (Academy of Finland Funding decision)
255359 (Academy of Finland Funding decision)
263705 (Academy of Finland Funding decision)
© Author(s) 2017. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).