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Proceedings Paper

VCSEL arrays for quasi-continuous-wave applications
Author(s): James Foresi; Mial E. Warren; Matthew K. Block; Lei Yang; Kevin Toledo; Chris J. Helms; Gianluca Bacchin
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Paper Abstract

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.

Paper Details

Date Published: 1 March 2019
PDF: 10 pages
Proc. SPIE 10938, Vertical-Cavity Surface-Emitting Lasers XXIII, 109380D (1 March 2019); doi: 10.1117/12.2510715
Show Author Affiliations
James Foresi, TriLumina Corp. (United States)
Mial E. Warren, TriLumina Corp. (United States)
Matthew K. Block, TriLumina Corp. (United States)
Lei Yang, TriLumina Corp. (United States)
Kevin Toledo, TriLumina Corp. (United States)
Chris J. Helms, TriLumina Corp. (United States)
Gianluca Bacchin, TriLumina Corp. (United States)


Published in SPIE Proceedings Vol. 10938:
Vertical-Cavity Surface-Emitting Lasers XXIII
Kent D. Choquette; Luke A. Graham, Editor(s)

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