Single-mode and High-speed Intracavity Metal Aperture VCSEL with Transverse Coupled Cavity Effect

We present a novel design of intracavity metal-aperture VCSELs toward high-speed and single-mode operations. The intracavity metal contact causes the transverse resonance which provides the modulation bandwidth enhancement. The small-signal modulation bandwidth can be double with a large mode-field diameter of 10μm and single-mode operations.