The proliferation of Internet-of-Things has promoted a wide variety of emerging applications
that require compact, lightweight, and low-cost optical spectrometers. While substantial …

Recent developments in chip-based photonic quantum circuits have radically impacted
quantum information processing. However, it is challenging for monolithic photonic platforms …

Optical waveguide segments based on geometrically unbound photonic crystal fiber (PCF)
designs could be exploited as building blocks to realize miniaturized complex devices that …

Packaging of photonic integrated circuit (PIC) chips is an essential and critical step before
they can be integrated into functional optoelectronic systems. Photonic packaging is …

The direct laser writing technique based on two-photon polymerization (TPP) has evolved
considerably over the past two decades. Its remarkable characteristics, such as 3D …

Photonic integrated circuits (PICs) have long been considered as disruptive platforms that
revolutionize optics. Building on the mature industrial foundry infrastructure for electronic …

One of the main issues in integrated photonics is the coupling of free‐space or optical fiber
radiation to waveguides on the photonic chip surface. The ideal coupler is miniature, highly …

We review the motivation, goals, and achievements of the Photonic Integrated Networked
Energy efficient datacenter (PINE) project, which is part of the Advanced Research Projects …

Plasmonic waveguides allow focusing, guiding, and manipulating light at the nanoscale and
promise the miniaturization of functional optical nanocircuits. Dielectric-loaded plasmonic …

Coupling of light between different photonic devices, for example on-chip waveguides,
fibers, and free-space optical elements, is an essential function enabling integrated optical …