Modern data centers increasingly rely on interconnects for delivering critical
communications connectivity among numerous servers, memory, and computation …

Vertical-cavity surface-emitting lasers (VCSELs) are the ideal optical sources for data
communication and sensing. In data communication, large data rates combined with …

Electro-optic modulators are an indispensable part of photonic communication systems,
largely dictating the achievable transmission rate. Recent advances in materials and …

Client-side optics are facing an ever-increasing upgrading pace, driven by upcoming 5G
related services and datacenter applications. The demand for a single lane data rate is soon …

Silicon does not emit light efficiently, therefore the integration of other light‐emitting
materials is highly demanded for silicon photonic integrated circuits. A number of integration …

Large scale data centers (DC) and high performance computing (HPC) systems require
more and more computing power at higher energy efficiency. They are already consuming …

Vertical-cavity surface-emitting lasers (VCSELs) have made remarkable progress, are being
used across a wide range of consumer electronic applications, and have particularly …

The cost and power consumption of optical transmitters are now hampering further
increases in total transmission capacity within and between data centers. Photonic …

We review recent developments in directly modulated lasers (DMLs) with low operating
energy for datacom and computercom applications. Key issues are their operating energy …

Single-mode 1.5-μm InP-based vertical-cavity surface-emitting lasers (VCSELs) with a 1.5-λ-
long semiconductor cavity and two dielectric distributed Bragg reflectors (DBRs) are …