Vortex beam generation by fabricating spiral phase plate on fiber tips

Bowen Li; Wenyin Wei; Haifeng Lin; Jiayu Huang; Jintao Wang; Xin He; Peiguang Yan; Junbo Yang

doi:10.1117/12.2666357

21 March 2023 Vortex beam generation by fabricating spiral phase plate on fiber tips

Bowen Li, Wenyin Wei, Haifeng Lin, Jiayu Huang, Jintao Wang, Xin He, Peiguang Yan, Junbo Yang

Proceedings Volume 12595, Advanced Fiber Laser Conference (AFL2022); 1259504 (2023) https://doi.org/10.1117/12.2666357
Event: Advanced Fiber Laser Conference (AFL2022), 2022, Changsha, China

Abstract

We have proposed and implemented a scheme for Spiral Phase Plate (SPP) with continuous surface fabrication on fiber tips. By combining Focused Ion Beam-Scanning Electron Microscope (FIB-SEM) system and bitmap (BMP) format processing method, we fabricated a SPP with the topological charge of 1 on the fiber tip, and experimentally analyzed the diffraction and interference properties of the generated vortex beam. The experimental results were in good agreement with the simulation results, which indicated the SPP fabricated by this method had good optical properties and high reliability. This work could be valuable for fiber communication and information encryption.

Citation Download Citation

Bowen Li, Wenyin Wei, Haifeng Lin, Jiayu Huang, Jintao Wang, Xin He, Peiguang Yan, and Junbo Yang "Vortex beam generation by fabricating spiral phase plate on fiber tips", Proc. SPIE 12595, Advanced Fiber Laser Conference (AFL2022), 1259504 (21 March 2023); https://doi.org/10.1117/12.2666357

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KEYWORDS

Spiral phase plates

Spherical lenses

Structured optical fibers

Image processing

Fabrication

Gaussian beams

Optical simulations

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