Linear multimode optical systems have enabled clean experimental observations and the
applications of numerous phenomena that continually extend the boundaries of wave …

Orbital angular momentum (OAM), which describes the “phase twist”(helical phase pattern)
of light beams, has recently gained interest due to its potential applications in many diverse …

Abstract Space-division multiplexing (SDM), as a main candidate for future ultra-high
capacity fibre-optic communications, needs to address limitations to its scalability imposed …

An optical vortex having an isolated point singularity is associated with the spatial structure
of light waves. A polarization vortex (vector beam) with a polarization singularity has …

Time, polarization, and wavelength multiplexing schemes have been used to satisfy the
growing need of transmission capacity. Using space as a new dimension for communication …

Orbital angular momentum (OAM) of light beams with helical phase front, as an alternative
spatial dimension resource of photons, has attracted extensive attention over the past …

We propose a family of ring-core fibers, designed for the transmission of OAM modes, that
can be fabricated by drawing five different fibers from a single preform. This novel technique …

Quantum photonic platforms have proven to be essential in realizing fundamentally secure
quantum transfer of information, with commercially ready systems already deployed in …

Orbital angular momentum (OAM) modes, having unique properties of a helical phase
structure and doughnut intensity profile, have been widely studied in fiber-optic …

Angular momentum, a fundamental physical quantity, can be divided into spin angular
momentum (SAM) and orbital angular momentum (OAM) in electromagnetic waves. Helically …