VCSEL arrays for quasi-continuous-wave applications

James Foresi, Mial E. Warren, Matthew K. Block, Lei Yang, Kevin Toledo, Chris J. Helms, Gianluca Bacchin

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

2 Scopus citations


The design and optimization of two-dimensional VCSEL arrays operating with duty-cycles from 2 to 5% (quasicontinuous- wave or QCW) operating at 940 nm are presented. Designs for nominal 8 W and 100 W peak power using TriLumina's flip-chip-bondable, back-side-emitting VCSELs are reviewed. Performance as a function of duty cycle, including peak power output, spectral width and beam divergence are presented. Performance from -40°C to 125°C, corresponding to automotive grade 1 requirements, is reviewed. Optimization of the VCSEL arrays as a function of the number of emitters per chip is analyzed for trends in wall-plug efficiency, slope efficiency and operating conditions.

Original languageEnglish (US)
Title of host publicationVertical-Cavity Surface-Emitting Lasers XXIII
EditorsLuke A. Graham, Kent D. Choquette
ISBN (Electronic)9781510625181
StatePublished - 2019
Externally publishedYes
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
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceVertical-Cavity Surface-Emitting Lasers XXIII 2019
Country/TerritoryUnited States
CitySan Francisco


  • Quasi-Continuous-Wave
  • Time-of-Flight
  • VCSEL array

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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