Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension
of light waves into a helical phase structure, has given rise to many applications in optical …

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

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 …

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

Tailored complex optical fields, may find applications in optical manipulation, imaging,
microscopy, quantum information processing, and optical communications. Here, we focus …

Orbital angular momentum (OAM) modes are another mode basis to represent spatial
modes. There have been increasing interests in exploiting OAM modes in specialty fibres. In …

With growing interest in the spatial dimension of light, multimode fibers, which support
eigenmodes with unique spatial and polarization attributes, have experienced resurgent …

Lights carrying orbital angular momentum (OAM), also called twisted lights, have been
applied in fields of optical manipulation, imaging, quantum communication, and mode …

Structured light, also known as tailored light, shaped light, sculpted light, or custom light,
refers to a series of special light beams with spatially variant amplitudes and phases …

We theoretically propose two orbital angular momentum (OAM) erbium-doped ring-core fiber
(RCF) amplifiers capable of providing relatively uniform gain for 22 modes with 18 OAM …