VCSEL arrays for quasi-continuous-wave applications

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

doi:10.1117/12.2510715

1 March 2019 VCSEL arrays for quasi-continuous-wave applications

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

Proceedings Volume 10938, Vertical-Cavity Surface-Emitting Lasers XXIII; 109380D (2019) https://doi.org/10.1117/12.2510715
Event: SPIE OPTO, 2019, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

James Foresi, Mial E. Warren, Matthew K. Block, Lei Yang, Kevin Toledo, Chris J. Helms, and Gianluca Bacchin "VCSEL arrays for quasi-continuous-wave applications", Proc. SPIE 10938, Vertical-Cavity Surface-Emitting Lasers XXIII, 109380D (1 March 2019); https://doi.org/10.1117/12.2510715

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