High-power VCSEL arrays with customized beam divergence for 3D-sensing applications

Serdal Okur, Maik Scheller, Jean Francois Seurin, Alexander Miglo, Guoyang Xu, Dingkai Guo, Robert Van Leeuwen, Baiming Guo, Hasan Othman, Laury Watkins, Chuni Ghosh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

The demand for high-power vertical-cavity surface-emitting laser (VCSEL) arrays is increasing continuously due to the growing market for 3D sensing solutions. In these applications (e.g. face recognition or drive-assistance systems), the distances of the objects of interest vary by orders of magnitude. For this reason, a flexible tailoring of the beam divergence is desired. In this work, we discuss methods to tune the emitted beam profile by only optimizing the epitaxial structure of a VCSEL. We show results of VCSEL arrays with beam divergences ranging between ∼10° and 45°. This technique is also power scalable and multi-watt VCSEL arrays can be realized.

Original languageEnglish (US)
Title of host publicationVertical-Cavity Surface-Emitting Lasers XXIII
EditorsLuke A. Graham, Kent D. Choquette
PublisherSPIE
ISBN (Electronic)9781510625181
DOIs
StatePublished - 2019
EventVertical-Cavity Surface-Emitting Lasers XXIII 2019 - San Francisco, United States
Duration: Feb 6 2019Feb 7 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10938
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceVertical-Cavity Surface-Emitting Lasers XXIII 2019
Country/TerritoryUnited States
CitySan Francisco
Period2/6/192/7/19

Keywords

  • 2D array
  • Semiconductor lasers
  • beam divergence
  • brightness
  • high efficiency
  • high-power
  • vertical-cavity surface-emitting lasers (VCSELs)

ASJC Scopus subject areas

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

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