11:15 AM - 11:30 AM
▼ [20a-211B-7] Generation of multiple OAM states from an optical vortex parametric oscillator
Keywords:optical vortices, nonlinear optics, optical parametric oscillation
Helical light beams, i.e., optical vortices, carry an orbital angular momentum (OAM), characterized by an azimuthal phase term, , where is a topological charge andis the azimuthal angle. Optical vortices have been attracting much attention in a variety of research fields, for instance, material processing for chiral structured materials, optical trapping and manipulation, and microscopy with high spatial resolution. The above-mentioned applications strongly desire controllable OAM states versatility to optical vortex sources.
In this presentation, we report on the first demonstration of the selective generation of multiple OAM states with =-2~4, including an up-converted and negative OAM states, from an optical vortex-pumped non-critical phase matching LiB3O5 (NCPM-LBO) optical parametric oscillator (OPO) with a singly resonant cavity configuration by simply tuning the wavelengths of signal and idler outputs.
In this presentation, we report on the first demonstration of the selective generation of multiple OAM states with =-2~4, including an up-converted and negative OAM states, from an optical vortex-pumped non-critical phase matching LiB3O5 (NCPM-LBO) optical parametric oscillator (OPO) with a singly resonant cavity configuration by simply tuning the wavelengths of signal and idler outputs.