Optical microcombs represent a new paradigm for generating laser frequency combs based
on compact chip-scale devices, which have underpinned many modern technological …

Abstract Machine learning, as a study of algorithms that automate prediction and decision‐
making based on complex data, has become one of the most effective tools in the study of …

Photonic RF transversal signal processors, which are equivalent to reconfigurable electrical
digital signal processors but implemented with photonic technologies, are attractive for high …

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

Optical wireless communication (OWC) refers to transmission in unguided propagation
media through the use of optical carriers, ie, visible, infrared (IR), and ultraviolet (UV) bands …

Space-division multiplexing (SDM) uses multiplicity of space channels to increase capacity
for optical communication. It is applicable for optical communication in both free space and …

In free-space optical communications that use both amplitude and phase data modulation
(for example, in quadrature amplitude modulation (QAM)), the data are typically recovered …

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

The tremendous growth of data traffic has spurred a rapid evolution of optical
communications for a higher data transmission capacity. Next-generation fiber-optic …

The outstanding phase‐noise performance of optical frequency combs has led to a
revolution in optical synthesis and metrology, covering a myriad of applications, from …