Abstract
It is shown that the vector-vortex Laguerre–Gauss modes with polarization-orbital angular momentum (OAM) entanglement are the vector solutions of the Maxwell equations in a graded-index medium. Focusing of linearly and circularly polarized vortex light beams with nonzero azimuthal and radial indices in a cylindrical graded-index waveguide is investigated. The wave shape variation with distance taking into account the spin–orbit and nonparaxial effects is analyzed. The effect of long-term periodic revival of wave packets due to mode interference in a graded-index cylindrical optical waveguide is demonstrated. High efficiency transfer of a strongly focused spot through an optical waveguide over large distances takes place with a period of revival.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
Chaohong Huang, Yishu Zheng, and Hanqing Li
J. Opt. Soc. Am. A 33(11) 2137-2143 (2016)
Zhiwei Xiao, Zhenzhou Cao, Xuejun Qiu, Jin Hou, and Chunyong Yang
Opt. Mater. Express 12(2) 503-512 (2022)
Jessica Conry, Reeta Vyas, and Surendra Singh
J. Opt. Soc. Am. A 30(5) 821-824 (2013)