support from the National Natural Science Foundation of China(No.12204264);the Jiangsu Provincial Fundamental Research Program(No.BK20243029);the Shenzhen Science and Technology Innovation Commission(No.JCYJ20230807111706014);support from the National Key R&D Program of China(2021YFB2802003);National Natural Science Foundation of China(NSFC)(62325503);support from the National Natural Science Foundation of China(81930048);the Guangdong Science and Technology Commission(2019BT02X105);Hong Kong Research Grant Council(15217721,C7074-21);the Hong Kong Polytechnic University(P0045680,P0043485,P0045762,P0049101);Y.S.acknowledges the National Key Research and Development Program of China(No.2023YFF0613600);the Shanghai Pilot Program for Basic Research,National Natural Science Foundation of China(No.62205246);Science and Technology Commission of Shanghai Municipality(No.22ZR1432400).
Optical vortices,featured with an infinite number of orthogonal channels of orbital angular momentum,have demonstrated marvelous potentials in optical multiplexing and associated applications.However,conventional vort...