Integrated photonics is attracting considerable attention and has found many applications in
both classical and quantum optics, fulfilling the requirements for the ever-growing complexity …

The optical fibre is an essential tool for our communication infrastructure since it is the main
transmission channel for optical communications. The latest major advance in optical fibre …

Four-mode multiplexing and manipulation technologies are reviewed in the context of space-
division multiplexing (SDM) optical communication systems. These are multiplane light …

Since the discovery that tightly focused femtosecond laser pulses can induce a highly
localised and permanent refractive index modification in a large number of transparent …

We experimentally demonstrate the first few-mode space division multiplexed (SDM)
transmission of real-time 10Gb/s Ethernet (10GbE) traffic using commercial small form-factor …

Mode-division multiplexing (MDM) technique based on few-mode fibers (FMFs) can achieve
multiplicative growth in single-fiber capacity by using different linearly polarized (LP) modes …

Ultrafast laser photoinscription of optical materials has seen a strong development in the
recent years for a range of applications in integrated photonics. Fueled by its capability to …

As the most fundamental unit of photonic integration, optical waveguides offer the possibility
of developing efficient and practical photonic chips by facilitating the on‐chip integration of …

We report a mode (de) multiplexer based on the structure of cascaded vertical waveguide
directional couplers, where the spatial modes of a few-mode core are coupled to various …

We measure the mode coupling matrix for a 0.5 km elliptical-core few-mode fiber supporting
six spatial modes (HG00, HG01, HG10, HG02, HG20, and HG11) at 980nm. We demonstrate …