Development and implementation of a laser headlight system for electro-optic characteristic measurement and comparison

Chang Hua Lin, Kai Jun Pai*, Po Hsun Chen

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

2 Citations (Scopus)

Abstract

In this study, a laser headlight driving controller (LHDC) using the controller area network (CAN)-bus communication system was developed and implemented for vehicle headlight applications. To observe temperature variations that influence the forward-bias voltage and optical power of laser diodes, the laser diode was placed in an ambient temperature-testing chamber to measure the electro-optic characteristics and calculate the electro-optic conversion efficiencies. The optical power and conversion efficiency values obtained at different temperatures (from negative to positive temperatures) when optical power adjustment was executed using analog and pulse-width modulation technologies were compared. Moreover, a human-machine operating interface was developed using the LabVIEW software. Therefore, the LHDC and laser optical power can be controlled using a computer through the CAN-bus communication system to control the LHDC and monitor it.

Original languageEnglish
Pages (from-to)294-307
Number of pages14
JournalInternational Journal of Circuit Theory and Applications
Volume48
Issue number2
DOIs
Publication statusPublished - 2020 Feb 1
Externally publishedYes

Keywords

  • CAN-bus
  • laser diode
  • laser headlight
  • optical power

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Fingerprint

Dive into the research topics of 'Development and implementation of a laser headlight system for electro-optic characteristic measurement and comparison'. Together they form a unique fingerprint.

Cite this