High-power, format-flexible, 885-nm vertical-cavity surface-emitting laser arrays

Chad Wang; Fedor Talantov; Henry Garrett; Glen Berdin; Terri Cardellino; David Millenheft; Jonathan Geske

doi:10.1117/12.2005819

13 March 2013 High-power, format-flexible, 885-nm vertical-cavity surface-emitting laser arrays

Chad Wang, Fedor Talantov, Henry Garrett, Glen Berdin, Terri Cardellino, David Millenheft, Jonathan Geske

Proceedings Volume 8639, Vertical-Cavity Surface-Emitting Lasers XVII; 86390P (2013) https://doi.org/10.1117/12.2005819
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

High-power, format flexible, 885 nm vertical-cavity surface-emitting laser (VCSEL) arrays have been developed for solid-state pumping and illumination applications. In this approach, a common VCSEL size format was designed to enable tiling into flexible formats and operating configurations. The fabrication of a common chip size on ceramic submount enables low-cost volume manufacturing of high-power VCSEL arrays. This base VCSEL chip was designed to be 5x3.33 mm², and produced up to 50 Watts of peak continuous wave (CW) power. To scale to higher powers, multiple chips can be tiled into a combination of series or parallel configurations tailored to the application driver conditions. In actively cooled CW operation, the VCSEL array chips were packaged onto a single water channel cooler, and we have demonstrated 0.5x1, 1x1, and 1x3 cm² formats, producing 150, 250, and 500 Watts of peak power, respectively, in under 130 A operating current. In QCW operation, the 1x3 cm² VCSEL module, which contains 18 VCSEL array chips packaged on a single water cooler, produced over 1.3 kW of peak power. In passively cooled packages, multiple chip configurations have been developed for illumination applications, producing over 300 Watts of peak power in QCW operating conditions. These VCSEL chips use a substrate-removed structure to allow for efficient thermal heatsinking to enable high-power operation. This scalable, format flexible VCSEL architecture can be applied to wavelengths ranging from 800 to 1100 nm, and can be used to tailor emission spectral widths and build high-power hyperspectral sources.

Citation Download Citation

Chad Wang, Fedor Talantov, Henry Garrett, Glen Berdin, Terri Cardellino, David Millenheft, and Jonathan Geske "High-power, format-flexible, 885-nm vertical-cavity surface-emitting laser arrays", Proc. SPIE 8639, Vertical-Cavity Surface-Emitting Lasers XVII, 86390P (13 March 2013); https://doi.org/10.1117/12.2005819

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KEYWORDS

Vertical cavity surface emitting lasers

Continuous wave operation

High power lasers

Ceramics

Packaging

Semiconducting wafers

Solid state lasers

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