Large ring-aperture VCSEL transitions from high-divergence ring to 8° quasi-Gaussian beam at high current via lower-order azimuthal modes.
Investigation of the current influence on near-field and far-field beam patterns for an oxide-confinedvertical-cavitysurface-emittinglaser.Opt
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Low-Divergence Quasi-Gaussian Emission at Watt-Level Power from a Large-Diameter Ring-Aperture VCSEL
Large ring-aperture VCSEL transitions from high-divergence ring to 8° quasi-Gaussian beam at high current via lower-order azimuthal modes.