Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …

Laguerre–Gaussian (LG) beams are typical vortex beams with orbital angular momentum
(OAM), spiral wavefront phase, and donut-shaped intensity distribution. They are widely …

We demonstrate an end-pumped Laguerre-Gaussian (LG) mode-selectable Nd: YVO_4
laser utilizing enhanced intracavity spherical aberration. The cavity was designed to exploit …

The unique properties of optical vortex beams, in particular their spiral wavefront, have
resulted in the emergence of a wide range of unique applications for this type of laser output …

We present a high beam quality, mid-infrared, wavelength tunable, idler-resonant optical
vortex parametric oscillator based on a single-grating MgO-doped periodically poled lithium …

A 1645-nm single-frequency vortex beam with narrow linewidth from an Er: YAG nonplanar
ring oscillator (NPRO) using an annular pump beam is demonstrated. The pump beam from …

Here we demonstrate intracavity frequency-doubling of an ultra-compact (cavity length< 20
mm) Pr^ 3+: LiYF_4 (YLF) orbital Poincaré laser, in which the fundamental modes are …

We investigated high energy, near and mid-infrared optical vortex lasers formed by a 1 μm
optical vortex-pumped KTiOAsO4 (KTA) optical parametric oscillator. The orbital angular …

We present a systematic overview on laser transverse modes with ray-wave duality. We start
from the spectrum of eigenfrequencies in ideal spherical cavities to display the critical role of …

We experimentally demonstrated a method of generating continuously wavelength-
switchable optical vortex beams (OVBs) in an all-fiber laser. A polarization-dependent …