Nguyen, Hue ThiSwitkowski, KrzysztofKasztelanic, RafalAnuszkiewicz, AlicjaFilipkowski, AdamPysz, DariuszStepien, RyszardKrolikowski, WieslawBuczynski, Ryszard2023-09-27December 1978-172814948-6http://hdl.handle.net/1885/300269We have developed a new optical vortex generator based on flat-surface nanostructured gradient index vortex phase plate (VPP) integrated with optical single mode fiber (SMF). The considered phase plate was constructed of set of designed discrete sub-wavelength rods made of two thermally matched glasses with high and low refractive indices. We used modified stack and draw technique to fabricate the nanostructured VPPs which exhibit the effective refractive index distribution changing azimuthally due to the effective medium theory. The optical performance of the fabricated systems was experimentally investigated. The obtained results showed good agreement with the theoretical prediction of vortex generations.This work was supported by the project POIR.04.04.00- 1C74/16 operated within the Foundation for Polish Science Team Programme co-financed by the European Regional Development Fund under Smart Growth Operational Programme (SG OP), Priority Axis IV and Foundation for Polish Science co-financed by the European Union (Grant HOMING POIR 04.04.00-00-5E4E/18-00)application/pdfen-AU© 2019 IEEEOptical vortexfiber phase plate systemstructured lightsingular optics201910.1109/BICOP48819.2019.90595822022-08-07