NOVEL VCSEL DESIGNS
TO ENABLE HIGH-PERFORMANCE
OPTICAL TRANSMISSION
OF DIGITAL DATA
Vertical-cavity surface-emitting lasers (VCSELs) are the semiconductor laser workhorse of short-distance optical interconnects in data centers, server
clusters, the Internet infrastructure, and supercomputer applications. However, as bandwidth demand increases and data centers grow larger, the optical interconnects will need to achieve high bandwidth over longer fiber-optic
transmission distances, requiring VCSELs with narrow spectral width, sufficient output power, and higher modulation efficiency.
ECE Professor Kent Choquette has dev [