Driven primarily by cloud service and data-center applications, short-reach optical
communication has become a key market segment and growing research area in recent …

This paper reviews optical injection locking (OIL) of semiconductor lasers and its application
in optical communications and signal processing. Despite complex OIL dynamics, we …

Spectrally pure lasers, the heart of precision high-end scientific and commercial
applications, are poised to make the leap from the laboratory to integrated circuits …

The ability to process optical signals without passing into the electrical domain has always
attracted the attention of the research community. Processing photons by photons unfolds …

Graphene-based photodetectors have attracted significant attention for high-speed optical
communication due to their large bandwidth, compact footprint, and compatibility with silicon …

We experimentally propose and demonstrate homodyne coherent detection in a short-
distance data center interconnect with bidirectional fiber transmission. The transmitter in the …

We propose a DSP-free coherent-lite system that requires neither high-speed DSP nor high-
resolution signal converters for deployment inside datacenters over single mode fiber links …

Photonic integration opens the potential to reduce size, power, and cost of applications
normally relegated to table-and rack-sized systems. Today, a wide range of precision, high …

Precision optical-frequency and phase synchronization over fibre is critical for a variety of
applications, from timekeeping to quantum optics. Such applications utilize ultra-coherent …

As datacenters continue to scale in size, energy efficiency for short reach (<; 2 km) links is a
major factor for networks that may connect hundreds of thousands of servers. We …