19 February 2018 Simplicity VCSELs
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Abstract
We reduce the epitaxial design complexity of our conventional single-cavity oxide-aperture vertical-cavity surfaceemitting lasers (VCSELs) to reduce manufacturing costs while still meeting our internal 980 nanometer VCSEL performance goals via simplicity-in-design principles. We achieve maximum static single-mode optical output powers exceeding 4 milliwatts with small-signal modulation bandwidths exceeding 30 gigahertz at an ambient temperature of about 25 degrees Celsius for VCSELs with an oxide-aperture diameter of about 4 micrometers. Neighbor VCSELs with oxide-aperture diameters above 15 micrometers have maximum room temperature multiple-mode optical output powers of about 20 milliwatts with small-signal modulation bandwidths exceeding 20 gigahertz. The performance of our conventional oxide-confined 980 nanometer simplicity VCSELs exceeds the performance of our previously-reported and more complex 980 nanometer VCSEL epitaxial designs where we previously achieved maximum small-signal modulation bandwidths of about 26 gigahertz with oxide-aperture diameters of about 4 to 6 micrometers.
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Nasibeh Haghighi, Nasibeh Haghighi, Ricardo Rosales, Ricardo Rosales, Gunter Larisch, Gunter Larisch, Marcin Gębski, Marcin Gębski, Leszek Frasunkiewicz, Leszek Frasunkiewicz, Tomasz Czyszanowski, Tomasz Czyszanowski, James A. Lott, James A. Lott, } "Simplicity VCSELs", Proc. SPIE 10552, Vertical-Cavity Surface-Emitting Lasers XXII, 105520N (19 February 2018); doi: 10.1117/12.2295028; https://doi.org/10.1117/12.2295028
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