Abstract
Abstract We proposed a method based on high-order Bessel–Gaussian beam to improve quality and intensity profile of high-order perfect optical vortex (POV) array under tight focusing condition. By using this method, parameters of POV could be controlled such as uniform ring width, adjustable ring diameter as well as controllable position, numbers and topological charges. A quality factor was proposed for assessing POV with different ring diameter and different topological charge. Comparing with the conventional method for generating POV, the optimal high-order POV carry uniform intensity distribution and the same ring width and diameter, which may enlarge the application on optical manipulation of multiple particles, large capacity optical storage and multiplexing optical vortex communication.
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