A high power laser diode driver and collimating optical system design for laser 3D imaging

Wenlong Zhang, Qun Hao, Yong Song, Fuzhou Shang, He Sun, Tengfei Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

In the paper, a design scheme of driving circuit and collimating optical system used for 3D (three-dimensional) imaging device has been proposed. The driving circuit based on power MOSFET for high-power pulsed laser diode has the characteristics of short pulse-width and high output current. According to semiconductor laser's far field divergence characteristic, the aspheric collimation part has been designed by using optical design software ZEMAX. Far field beam tracing and collimation results are simulated. The laser driver's output current and pulse width are about 144A and 13.9ns respectively. The RMS of divergent angle of simulation in ZEMAX is 0.318mrad and the spot is more uniform.

Original languageEnglish
Title of host publicationSemiconductor Lasers and Applications V
DOIs
Publication statusPublished - 2012
EventSemiconductor Lasers and Applications V - Beijing, China
Duration: 5 Nov 20126 Nov 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8552
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSemiconductor Lasers and Applications V
Country/TerritoryChina
CityBeijing
Period5/11/126/11/12

Keywords

  • Aspheric lens
  • Laser beam collimation
  • Laser diode
  • Pulsed laser driver

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