19 February 2018 Low-divergence high-power VCSEL arrays for lidar application
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Abstract
Development of multi-mode, high-power, large-aperture two-dimensional VCSEL arrays, operating at a nominal wavelength of 940nm, with highly stable beam profile will be presented. They are designed and fabricated using Trilumina’s proprietary flip-chip-bondable back-side-emitting VCSEL array chip technology. We have demonstrated that a 150-element VCSEL chip array with the improved design shows divergence angle (FWHM) of less than 15°. Additionally, we have integrated this design into drive circuitry that allows us to achieve peak optical powers in excess of 400W.
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Mial E. Warren, David Podva, Preethi Dacha, Matthew K. Block, Christopher J. Helms, John Maynard, Richard F. Carson, "Low-divergence high-power VCSEL arrays for lidar application", Proc. SPIE 10552, Vertical-Cavity Surface-Emitting Lasers XXII, 105520E (19 February 2018); doi: 10.1117/12.2290937; https://doi.org/10.1117/12.2290937
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